diff --git a/.github/workflows/build_test_containers.yml b/.github/workflows/build_test_containers.yml
index 8e4154f85a..e7287345b8 100644
--- a/.github/workflows/build_test_containers.yml
+++ b/.github/workflows/build_test_containers.yml
@@ -34,7 +34,11 @@ jobs:
             - name: Get list of changed Dockerfiles
               id: get_changed_files
               run: |
-                changed_files=$(git diff --name-only ${{ github.event.before }} ${{ github.sha }} | grep ansible/docker/test/Dockerfile)
+                if [ ${{ github.event_name }} == "push" ]; then
+                    changed_files=$(git diff --name-only ${{ github.sha }} | grep ansible/docker/test/Dockerfile)
+                else
+                    changed_files=$(git diff --name-only ${{ github.event.before }} ${{ github.sha }} | grep ansible/docker/test/Dockerfile)
+                fi
                 echo "changed_files=$changed_files" >> "$GITHUB_OUTPUT"
 
             # Generate matrix