diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e58c13ccdb50..cbd97448ee73 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -3,6 +3,7 @@ name: Check stubs
 on:
   workflow_dispatch:
   push:
+    branches: [master]
   pull_request:
 
 permissions: