diff --git a/cumulus/.github/workflows/fmt-check.yml b/cumulus/.github/workflows/fmt-check.yml
index 844dda46b8bdd7846b1b6c0e40a9e4a000028b76..8f68be7a4addcb48fdc58d25d7a091d04538a813 100644
--- a/cumulus/.github/workflows/fmt-check.yml
+++ b/cumulus/.github/workflows/fmt-check.yml
@@ -1,6 +1,9 @@
 name: Rustfmt check
 
 on:
+  push:
+    branches:
+      - master
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]