diff --git a/src/Asset/RevisionCompiler.php b/src/Asset/RevisionCompiler.php
index 01a35ff73..31656a7b5 100644
--- a/src/Asset/RevisionCompiler.php
+++ b/src/Asset/RevisionCompiler.php
@@ -104,7 +104,6 @@ class RevisionCompiler implements CompilerInterface
      */
     protected function getCacheDifferentiator()
     {
-        return;
     }
 
     /**