diff --git a/src/Composer/Installer/AbstractInstaller.php b/src/Composer/Installer/AbstractInstaller.php
index 380ffe1..2149417 100644
--- a/src/Composer/Installer/AbstractInstaller.php
+++ b/src/Composer/Installer/AbstractInstaller.php
@@ -8,6 +8,7 @@
 use Composer\Package\PackageInterface;
 use Composer\Repository\InstalledRepositoryInterface;
 use LastCall\DownloadsPlugin\Composer\Package\ExtraDownloadInterface;
+use LastCall\DownloadsPlugin\Composer\Repository\ExtraDownloadsRepositoryInterface;
 use LastCall\DownloadsPlugin\Exception\ExtraDownloadHashMismatchException;
 use LastCall\DownloadsPlugin\Installer\ExecutableInstaller;
 use LastCall\DownloadsPlugin\Installer\ExecutableInstallerInterface;
@@ -27,14 +28,13 @@ public function __construct(
 
     public function isInstalled(InstalledRepositoryInterface $repo, PackageInterface $package): bool
     {
-        if (!$package instanceof ExtraDownloadInterface) {
+        if (!$package instanceof ExtraDownloadInterface || !$repo instanceof ExtraDownloadsRepositoryInterface) {
             return false;
         }
 
-        $hasPackage = $repo->hasPackage($package);
         $fileExists = file_exists($package->getInstallPath());
 
-        if (!$hasPackage && $fileExists) {
+        if ($fileExists && !$repo->isTracked($package)) {
             $this->io->write(
                 sprintf(
                     '<info>Extra file <comment>%s</comment> has been locally overriden in <comment>%s</comment>. To reset it, delete and reinstall.</info>',
@@ -47,7 +47,7 @@ public function isInstalled(InstalledRepositoryInterface $repo, PackageInterface
             return true;
         }
 
-        if ($hasPackage && $fileExists) {
+        if ($fileExists && $repo->hasPackage($package)) {
             $this->io->write(
                 sprintf('<info>Skip extra file <comment>%s</comment></info>', $package->getName()),
                 true,
diff --git a/src/Composer/Repository/ExtraDownloadsRepository.php b/src/Composer/Repository/ExtraDownloadsRepository.php
index b642ced..0093c8e 100644
--- a/src/Composer/Repository/ExtraDownloadsRepository.php
+++ b/src/Composer/Repository/ExtraDownloadsRepository.php
@@ -5,11 +5,10 @@
 use Composer\Installer\InstallationManager;
 use Composer\Json\JsonFile;
 use Composer\Package\PackageInterface;
-use Composer\Repository\InstalledRepositoryInterface;
 use Composer\Repository\InvalidRepositoryException;
 use LastCall\DownloadsPlugin\Composer\Package\ExtraDownloadInterface;
 
-class ExtraDownloadsRepository implements InstalledRepositoryInterface
+class ExtraDownloadsRepository implements ExtraDownloadsRepositoryInterface
 {
     private array $extraDownloads;
 
@@ -45,6 +44,11 @@ public function hasPackage(PackageInterface $package): bool
         return $this->extraDownloads[$name] === $package->getTrackingChecksum();
     }
 
+    public function isTracked(ExtraDownloadInterface $package): bool
+    {
+        return isset($this->extraDownloads[$package->getName()]);
+    }
+
     protected function initialize(): void
     {
         $this->extraDownloads = [];
diff --git a/src/Composer/Repository/ExtraDownloadsRepositoryInterface.php b/src/Composer/Repository/ExtraDownloadsRepositoryInterface.php
new file mode 100644
index 0000000..7321f50
--- /dev/null
+++ b/src/Composer/Repository/ExtraDownloadsRepositoryInterface.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace LastCall\DownloadsPlugin\Composer\Repository;
+
+use Composer\Repository\InstalledRepositoryInterface;
+use LastCall\DownloadsPlugin\Composer\Package\ExtraDownloadInterface;
+
+interface ExtraDownloadsRepositoryInterface extends InstalledRepositoryInterface
+{
+    public function isTracked(ExtraDownloadInterface $extraDownload): bool;
+}
diff --git a/tests/Unit/Composer/Installer/AbstractInstallerTestCase.php b/tests/Unit/Composer/Installer/AbstractInstallerTestCase.php
index 0d2fbc2..85fd851 100644
--- a/tests/Unit/Composer/Installer/AbstractInstallerTestCase.php
+++ b/tests/Unit/Composer/Installer/AbstractInstallerTestCase.php
@@ -7,8 +7,9 @@
 use Composer\Installer\InstallerInterface;
 use Composer\IO\IOInterface;
 use Composer\Package\PackageInterface;
-use Composer\Repository\InstalledRepositoryInterface;
+use Composer\Repository\InstalledArrayRepository;
 use LastCall\DownloadsPlugin\Composer\Package\ExtraDownloadInterface;
+use LastCall\DownloadsPlugin\Composer\Repository\ExtraDownloadsRepositoryInterface;
 use LastCall\DownloadsPlugin\Exception\ExtraDownloadHashMismatchException;
 use LastCall\DownloadsPlugin\Installer\ExecutableInstallerInterface;
 use PHPUnit\Framework\MockObject\MockObject;
@@ -23,7 +24,7 @@ abstract class AbstractInstallerTestCase extends TestCase
     protected IOInterface|MockObject $io;
     protected DownloadManager|MockObject $downloadManager;
     protected ExecutableInstallerInterface|MockObject $executableInstaller;
-    protected InstalledRepositoryInterface|MockObject $repository;
+    protected ExtraDownloadsRepositoryInterface|MockObject $repository;
     protected ExtraDownloadInterface|MockObject $extraDownload;
     protected PackageInterface|MockObject $package;
     protected InstallerInterface $installer;
@@ -39,7 +40,7 @@ protected function setUp(): void
         $this->io = $this->createMock(IOInterface::class);
         $this->downloadManager = $this->createMock(DownloadManager::class);
         $this->executableInstaller = $this->createMock(ExecutableInstallerInterface::class);
-        $this->repository = $this->createMock(InstalledRepositoryInterface::class);
+        $this->repository = $this->createMock(ExtraDownloadsRepositoryInterface::class);
         $this->extraDownload = $this->createMock(ExtraDownloadInterface::class);
         $this->package = $this->createMock(PackageInterface::class);
         $this->installer = $this->createInstaller();
@@ -50,31 +51,103 @@ protected function tearDown(): void
         $this->fs = null;
     }
 
-    public function testIsInstalledPackage(): void
+    public function testIsInstalledNotSupportedPackage(): void
     {
         $this->assertFalse($this->installer->isInstalled($this->repository, $this->package));
     }
 
-    public function getIsInstalledExtraDownloadTests(): array
+    public function testIsInstalledNotSupportedRepository(): void
     {
-        return [
-            [true, true, true],
-            [false, true, true],
-            [true, false, false],
-            [false, false, false],
-        ];
+        $this->assertFalse($this->installer->isInstalled(new InstalledArrayRepository(), $this->package));
+    }
+
+    public function testIsInstalledSkip(): void
+    {
+        $this->repository
+            ->expects($this->once())
+            ->method('hasPackage')
+            ->with($this->extraDownload)
+            ->willReturn(true);
+        $this->repository
+            ->expects($this->once())
+            ->method('isTracked')
+            ->with($this->extraDownload)
+            ->willReturn(true);
+        $this->extraDownload
+            ->expects($this->once())
+            ->method('getInstallPath')
+            ->willReturn($this->fs->path($this->installPath));
+        $this->fs->createDirectory(\dirname($this->installPath), true);
+        $this->fs->createFile($this->installPath, 'downloaded file');
+        $this->extraDownload
+            ->expects($this->once())
+            ->method('getName')
+            ->willReturn($this->name);
+        $this->io
+            ->expects($this->once())
+            ->method('write')
+            ->with(
+                sprintf('<info>Skip extra file <comment>%s</comment></info>', $this->name),
+                true,
+                IOInterface::VERY_VERBOSE
+            );
+        $this->assertTrue($this->installer->isInstalled($this->repository, $this->extraDownload));
+    }
+
+    public function testIsInstalledLocalyOverriden(): void
+    {
+        $this->repository
+            ->expects($this->once())
+            ->method('isTracked')
+            ->with($this->extraDownload)
+            ->willReturn(false);
+        $this->extraDownload
+            ->expects($this->once())
+            ->method('getInstallPath')
+            ->willReturn($this->fs->path($this->installPath));
+        $this->fs->createDirectory(\dirname($this->installPath), true);
+        $this->fs->createFile($this->installPath, 'downloaded file');
+        $this->extraDownload
+            ->expects($this->once())
+            ->method('getName')
+            ->willReturn($this->name);
+        $this->extraDownload
+            ->expects($this->once())
+            ->method('getTargetDir')
+            ->willReturn($this->targetDir);
+        $this->io
+            ->expects($this->once())
+            ->method('write')
+            ->with(
+                sprintf(
+                    '<info>Extra file <comment>%s</comment> has been locally overriden in <comment>%s</comment>. To reset it, delete and reinstall.</info>',
+                    $this->name,
+                    $this->targetDir,
+                ),
+                true
+            );
+        $this->assertTrue($this->installer->isInstalled($this->repository, $this->extraDownload));
     }
 
     /**
-     * @dataProvider getIsInstalledExtraDownloadTests
+     * @testWith [false, true, true]
+     *           [true, true, false]
+     *           [true, false, false]
+     *           [false, true, false]
+     *           [false, false, false]
      */
-    public function testIsInstalledExtraDownload(bool $hasPackage, bool $fileExists, bool $isInstalled): void
+    public function testIsNotInstalled(bool $hasPackage, bool $isTracked, bool $fileExists): void
     {
         $this->repository
-            ->expects($this->once())
+            ->expects($this->any())
             ->method('hasPackage')
             ->with($this->extraDownload)
             ->willReturn($hasPackage);
+        $this->repository
+            ->expects($this->any())
+            ->method('isTracked')
+            ->with($this->extraDownload)
+            ->willReturn($isTracked);
         $this->extraDownload
             ->expects($this->once())
             ->method('getInstallPath')
@@ -83,40 +156,7 @@ public function testIsInstalledExtraDownload(bool $hasPackage, bool $fileExists,
             $this->fs->createDirectory(\dirname($this->installPath), true);
             $this->fs->createFile($this->installPath, 'downloaded file');
         }
-        if ($fileExists) {
-            $this->extraDownload
-                ->expects($this->once())
-                ->method('getName')
-                ->willReturn($this->name);
-        }
-        if (!$hasPackage && $fileExists) {
-            $this->extraDownload
-                ->expects($this->once())
-                ->method('getTargetDir')
-                ->willReturn($this->targetDir);
-            $this->io
-                ->expects($this->once())
-                ->method('write')
-                ->with(
-                    sprintf(
-                        '<info>Extra file <comment>%s</comment> has been locally overriden in <comment>%s</comment>. To reset it, delete and reinstall.</info>',
-                        $this->name,
-                        $this->targetDir,
-                    ),
-                    true
-                );
-        }
-        if ($hasPackage && $fileExists) {
-            $this->io
-                ->expects($this->once())
-                ->method('write')
-                ->with(
-                    sprintf('<info>Skip extra file <comment>%s</comment></info>', $this->name),
-                    true,
-                    IOInterface::VERY_VERBOSE
-                );
-        }
-        $this->assertSame($isInstalled, $this->installer->isInstalled($this->repository, $this->extraDownload));
+        $this->assertFalse($this->installer->isInstalled($this->repository, $this->extraDownload));
     }
 
     public function testDownloadPackage(): void
diff --git a/tests/Unit/Composer/Repository/ExtraDownloadsRepositoryTest.php b/tests/Unit/Composer/Repository/ExtraDownloadsRepositoryTest.php
index 15dc994..6038197 100644
--- a/tests/Unit/Composer/Repository/ExtraDownloadsRepositoryTest.php
+++ b/tests/Unit/Composer/Repository/ExtraDownloadsRepositoryTest.php
@@ -87,16 +87,9 @@ public function testHasPackage(): void
         $this->assertFalse($this->repository->hasPackage($this->package));
     }
 
-    public function getHasExtraDownloadTests(): array
-    {
-        return [
-            [false],
-            [true],
-        ];
-    }
-
     /**
-     * @dataProvider getHasExtraDownloadTests
+     * @testWith [true]
+     *           [false]
      */
     public function testHasExtraDownload(bool $sameTrackingChecksum): void
     {
@@ -114,6 +107,21 @@ public function testHasExtraDownload(bool $sameTrackingChecksum): void
         $this->assertSame($sameTrackingChecksum, $this->repository->hasPackage($this->extraDownload));
     }
 
+    public function testIsTracked(): void
+    {
+        $this->extraDownload
+            ->expects($this->exactly(3))
+            ->method('getName')
+            ->willReturn($this->name);
+        $this->extraDownload
+            ->expects($this->once())
+            ->method('getTrackingChecksum')
+            ->willReturn($this->trackingChecksum);
+        $this->assertFalse($this->repository->isTracked($this->extraDownload));
+        $this->repository->addPackage($this->extraDownload);
+        $this->assertTrue($this->repository->isTracked($this->extraDownload));
+    }
+
     public function testReloadFromInvalidFile(): void
     {
         $this->fs->createDirectory(\dirname($this->path), true);