diff --git a/.github/workflows/mg.yml b/.github/workflows/mg.yml
index 63ca34e..59a979d 100644
--- a/.github/workflows/mg.yml
+++ b/.github/workflows/mg.yml
@@ -18,18 +18,11 @@ jobs:
         shell: pwsh
         run: |
 
-          $base_ref = "${{ github.base_ref }}";
-          $github_ref = "${{ github.event.merge_group.base_sha || github.ref }}";
-          $github_basesha = "${{ github.event.pull_request.base.sha }}";
-          $mg_headRef = "${{ github.event.merge_group.head_ref }}"
-          $mg_baseRef = "${{ github.event.merge_group.base_sha }}"
+          $base_ref = "${{ github.base_ref || github.event.merge_group.base_ref }}";
+          $github_ref = "${{ github.ref }}";
           if($base_ref){
-            $ref = "origin/${{ github.base_ref }}"
-          } elseif($github_basesha){
-            $ref = $github_basesha
-          } elseif($mg_baseRef){
-            $ref = $mg_baseRef
-          }elseif($github_ref){
+            $ref = "origin/$base_ref"
+          } elseif($github_ref){
             $ref = $github_ref
           }else{
             echo "main_changed=True" >> $env:GITHUB_OUTPUT