diff --git a/.github/workflows/formatting.yaml b/.github/workflows/formatting.yaml
index 6110620cf73..9f4ecd6d28d 100644
--- a/.github/workflows/formatting.yaml
+++ b/.github/workflows/formatting.yaml
@@ -1,6 +1,8 @@
 name: Check code formatting
 
 on:
+  # We're using merge-chains; so this needs to run then.
+  merge_group:
   pull_request:
 
 jobs: