diff --git a/.travis.yml b/.travis.yml
index 641c718..c9a449c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,6 @@ before_script:
   - curl -sfL https://raw.githubusercontent.com/knqyf263/cob/master/install.sh | sudo sh -s -- -b /usr/local/bin
 
 script:
-  - diff -u <(echo -n) <(gofmt -d ./)
   - make
   - cob -bench-cmd make -bench-args bench
 
diff --git a/Makefile b/Makefile
index 393998e..21e1e9e 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,8 @@ VERSION := $(shell git describe --tags 2>/dev/null)
 LDFLAGS = -X main.version=$(VERSION)
 
 build:
+	rm -rf bindata
+	test -z $(shell gofmt -l ./)
 	go get -u github.com/shuLhan/go-bindata/...
 	$$GOPATH/bin/go-bindata -pkg bindata -o bindata/bindata.go etc/*
 	GO111MODULE=on go get ./...