diff --git a/.github/workflows/rerun.yml b/.github/workflows/rerun.yml
index d1d01dc2c..36bfdf7fc 100644
--- a/.github/workflows/rerun.yml
+++ b/.github/workflows/rerun.yml
@@ -5,6 +5,7 @@ on:
     inputs:
       run_id:
         required: true
+        description: github.run_id of workflow to rerun
 permissions:
   actions: write
   checks: write