diff --git a/.github/workflows/legacy-hook.yml b/.github/workflows/legacy-hook.yml
index 64685a23..6f3673f6 100644
--- a/.github/workflows/legacy-hook.yml
+++ b/.github/workflows/legacy-hook.yml
@@ -10,6 +10,7 @@ on:
   pull_request:
     paths:
       - 'legacy_hook/**/*'
+  workflow_dispatch: ~
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}