diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 60cc0416..061c6219 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -81,5 +81,4 @@ jobs:
       - name: Invoke acceptance tests workflow
         uses: benc-uk/workflow-dispatch@v1
         with:
-          workflow: testacc.yml
-          ref: ${{ github.event.pull_request.head.ref }}
\ No newline at end of file
+          workflow: testacc.yml
\ No newline at end of file
diff --git a/.github/workflows/testacc.yml b/.github/workflows/testacc.yml
index c35d3087..11124b59 100644
--- a/.github/workflows/testacc.yml
+++ b/.github/workflows/testacc.yml
@@ -28,7 +28,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 1
-          ref: ${{ github.event.workflow_run.head_branch }}
+          ref: ${{ github.event.inputs.ref || github.ref}}
 
       - name: Setup Go
         uses: actions/setup-go@v5