diff --git a/.github/workflows/dispatch-matrix-test-on-comment.yml b/.github/workflows/dispatch-matrix-test-on-comment.yml
index 33f80e4b40..5d391539e0 100644
--- a/.github/workflows/dispatch-matrix-test-on-comment.yml
+++ b/.github/workflows/dispatch-matrix-test-on-comment.yml
@@ -38,6 +38,7 @@ jobs:
           client-payload: '{"pr": "${{ github.event.number  }}"}'
 
       - uses: actions/github-script@v6
+        if: ${{ github.event.issue.pull_request && contains(github.event.comment.body, '/test-matrix') }}
         with:
           script: |
             github.rest.issues.createComment({