diff --git a/modules/system/classes/CombineAssets.php b/modules/system/classes/CombineAssets.php
index 87a9d1d8f..6da6e195c 100644
--- a/modules/system/classes/CombineAssets.php
+++ b/modules/system/classes/CombineAssets.php
@@ -400,7 +400,7 @@ class CombineAssets
             $this->putCache($cacheKey, $cacheInfo);
         }
 
-        return $this->getCombinedUrl($cacheInfo['version'] . '.' . $extension);
+        return $this->getCombinedUrl($cacheInfo['version']);
     }
 
     /**