diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index aa0c560d..a5e74de0 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -36,7 +36,7 @@ jobs:
       with:
         php-version: ${{ matrix.php-version }}
         extensions: intl, mysqli, oauth
-        ini-values: error_reporting=-1, memory_limit=512M, post_max_size=256M, xdebug.mode="debug,coverage,develop"
+        ini-values: error_reporting=-1, memory_limit=512M, post_max_size=256M, xdebug.mode="coverage,debug,develop"
         coverage: xdebug #optional
     - name: Check PHP Version
       run: |
diff --git a/src/Debug/Abstraction/Object/Subscriber.php b/src/Debug/Abstraction/Object/Subscriber.php
index da3a7abe..17227743 100644
--- a/src/Debug/Abstraction/Object/Subscriber.php
+++ b/src/Debug/Abstraction/Object/Subscriber.php
@@ -227,15 +227,19 @@ private function onStartMysqli(Abstraction $abs)
             test if stat() throws an error (ie "Property access is not allowed yet")
             if so, don't collect property values
         */
-        \set_error_handler(static function ($errno, $errstr) {
-            throw new RuntimeException($errstr, $errno); // @codeCoverageIgnore
+        $haveError = false;
+        \set_error_handler(static function ($errno, $errstr) use (&$haveError) {
+            $haveError = true;
         }, E_ALL);
         try {
             $mysqli = $abs->getSubject();
             $mysqli->stat();
         } catch (Error $e) {
-            $abs['collectPropertyValues'] = false;
+            $haveError = true;
         } catch (RuntimeException $e) {
+            $haveError = true;
+        }
+        if ($haveError) {
             $abs['collectPropertyValues'] = false;
         }
         \restore_error_handler();