diff --git a/.github/workflows/core_codestyle.yml b/.github/workflows/core_codestyle.yml
index 9408cca3..15641ee5 100644
--- a/.github/workflows/core_codestyle.yml
+++ b/.github/workflows/core_codestyle.yml
@@ -1,7 +1,9 @@
 name: Codestyle Checks
 on:
   push:
+      branches: [ master ]
   pull_request:
+      branches: [ master ]
   
 jobs:
   check-codestyle: