diff --git a/src/Mpociot/Versionable/VersionableTrait.php b/src/Mpociot/Versionable/VersionableTrait.php
index c9d3336..c9f1acc 100644
--- a/src/Mpociot/Versionable/VersionableTrait.php
+++ b/src/Mpociot/Versionable/VersionableTrait.php
@@ -185,7 +185,7 @@ private function isValidForVersioning()
     /**
      * @return int|null
      */
-    private function getAuthUserId()
+    protected function getAuthUserId()
     {
         if (Auth::check()) {
             return Auth::id();