diff --git a/.github/workflows/build-train.yml b/.github/workflows/build-train.yml
index ac34fe922a..5bf163c3c7 100644
--- a/.github/workflows/build-train.yml
+++ b/.github/workflows/build-train.yml
@@ -1,6 +1,8 @@
 name: Run build train on config changes
 on:
   push:
+    branches:
+      - 'main'
     paths:
       - 'config/*.config'