diff --git a/lib/image.php b/lib/image.php
index b797f331f4..e09486be08 100644
--- a/lib/image.php
+++ b/lib/image.php
@@ -178,7 +178,7 @@ class OC_Image {
 	* @brief Prints the image when called as $image().
 	*/
 	public function __invoke() {
-		self::show();
+		return self::show();
 	}
 
 	/**