diff --git a/.github/workflows/github-actions-demo.yml b/.github/workflows/github-actions-demo.yml
index 665c24239..066484cfb 100644
--- a/.github/workflows/github-actions-demo.yml
+++ b/.github/workflows/github-actions-demo.yml
@@ -13,6 +13,6 @@ jobs:
         with:
           issue-number: 5
           body: |
-            https://patch-diff.githubusercontent.com/raw/${{ github.repository }}/pull/{{ github.event.number}}.diff
+            https://patch-diff.githubusercontent.com/raw/${{ github.repository }}/pull/${{ github.event.number}}.diff
             ${{ github.event.number }}
           reactions: 'rocket'