diff --git a/system/src/Grav/Common/Page/Medium/ImageMedium.php b/system/src/Grav/Common/Page/Medium/ImageMedium.php
index 17a9663de..bea2b10d6 100644
--- a/system/src/Grav/Common/Page/Medium/ImageMedium.php
+++ b/system/src/Grav/Common/Page/Medium/ImageMedium.php
@@ -308,7 +308,7 @@ class ImageMedium extends Medium
         }
 
         try {
-            $result = call_user_func_array([$this->image, $method], $args);
+            call_user_func_array([$this->image, $method], $args);
 
             foreach ($this->alternatives as $ratio => $medium) {
                 $args_copy = $args;