diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c82217c..b527a31 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,9 @@
 name: build
 
 on:
+  push:
+    branches: 
+      - master
   pull_request:
     branches:
       - '*'
diff --git a/Makefile b/Makefile
index cea4c08..7f8c1f9 100644
--- a/Makefile
+++ b/Makefile
@@ -65,7 +65,7 @@ release: ## goreleaser --snapshot --skip-publish --rm-dist
 diff: ## git diff
 	$(call print-target)
 	git diff --exit-code
-	test -z "`git status --porcelain | tee /dev/tty`"
+	test -z "`git status --porcelain`" || (git status --porcelain && exit 1)
 
 .PHONY: docker
 docker: ## run in golang container, example: make docker run="make all"