diff --git a/Imagine/Data/Loader/AbstractDoctrineLoader.php b/Imagine/Data/Loader/AbstractDoctrineLoader.php
index 4113aaf48..42f4f7e2b 100644
--- a/Imagine/Data/Loader/AbstractDoctrineLoader.php
+++ b/Imagine/Data/Loader/AbstractDoctrineLoader.php
@@ -23,18 +23,29 @@ abstract class AbstractDoctrineLoader implements LoaderInterface
      */
     protected $class;
 
+    /**
+     * @var array
+     */
+    protected $formats;
+
     /**
      * Constructor.
      *
      * @param ImagineInterface $imagine
      * @param ObjectManager $manager
      * @param string $class
+     * @param array $formats possible image formats to look up file ids
      */
-    public function __construct(ImagineInterface $imagine, ObjectManager $manager, $class = null)
-    {
+    public function __construct(
+        ImagineInterface $imagine,
+        ObjectManager $manager,
+        $class = null,
+        array $formats = array()
+    ) {
         $this->imagine = $imagine;
         $this->manager = $manager;
         $this->class = $class;
+        $this->formats = $formats;
     }
 
     /**
@@ -64,6 +75,24 @@ public function find($path)
     {
         $image = $this->manager->find($this->class, $this->mapPathToId($path));
 
+        if (!$image) {
+            // try to find the image without extension
+            $info = pathinfo($path);
+            $name = $info['dirname'].'/'.$info['filename'];
+
+            // attempt to determine available format
+            foreach ($this->formats as $format) {
+                if ($image = $this->manager->find($this->class, $this->mapPathToId($name.'.'.$format))) {
+                    break;
+                }
+            }
+
+            // maybe the image has an id without extension
+            if (!$image) {
+                $image = $this->manager->find($this->class, $this->mapPathToId($name));
+            }
+        }
+
         if (!$image) {
             throw new NotFoundHttpException(sprintf('Source image not found with id "%s"', $path));
         }