diff --git a/action.yml b/action.yml
index 1f927d0..79b0ee5 100644
--- a/action.yml
+++ b/action.yml
@@ -155,7 +155,7 @@ runs:
       if: ${{ steps.gruntwork_context.outputs.terragrunt_command == 'apply' }}
       env:
         ACTION_PATH: ${{ github.action_path }}
-        MERGED_PR_NUMBER: ${{ steps.get_pr_number.outputs.pr_number }}
+        MERGED_PR_URL: https://github.com/${{ github.repository }}/pull/${{ steps.get_pr_number.outputs.pr_number }}
         CREATED_PR_URL: ${{ steps.create_pr.outputs.pull-request-url }}
         GH_TOKEN: ${{ inputs.INFRA_ROOT_WRITE_TOKEN }}
       run: |
@@ -166,7 +166,7 @@ runs:
 
         cat step-summary.md >> "$GITHUB_STEP_SUMMARY"
 
-        gh pr comment "$MERGED_PR_NUMBER" \
+        gh pr comment "$MERGED_PR_URL" \
         -F step-summary.md
 
         rm -f step-summary.md