diff --git a/.github/workflows/cooker-selfhosted.yml b/.github/workflows/cooker-selfhosted.yml
index 2994d14e..ba1f8785 100644
--- a/.github/workflows/cooker-selfhosted.yml
+++ b/.github/workflows/cooker-selfhosted.yml
@@ -15,7 +15,7 @@ on:
      - '*.sh'
      - 'net.retrodeck.retrodeck.yml'
      - 'net.retrodeck.retrodeck.appdata.xml'
-  pull_request: 
+  pull_request_target: 
     branches:
      - cooker*
 
@@ -56,6 +56,12 @@ jobs:
         with:
           submodules: 'true'
 
+      - name: Checkout PR branch (include changes)
+        if: ${{ github.event_name == 'pull_request' }}
+        run: |
+          git fetch origin +refs/pull/${{ github.event.pull_request.number }}/merge
+          git checkout -qf FETCH_HEAD
+        
       - name: "Install dependencies"
         run: "automation_tools/install_dependencies.sh"