diff --git a/apps/files_trashbin/lib/Trashbin.php b/apps/files_trashbin/lib/Trashbin.php
index 1ec1d1b2ea32f..d36f8360fc94d 100644
--- a/apps/files_trashbin/lib/Trashbin.php
+++ b/apps/files_trashbin/lib/Trashbin.php
@@ -616,6 +616,8 @@ private static function restoreVersions(View $view, $file, $filename, $uniqueFil
 				}
 			}
 		}
+
+		return null;
 	}
 
 	/**