diff --git a/.travis.yml b/.travis.yml
index 670ec44..eecbf5a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ install:
     - go get -v .
     - go get -v github.com/golang/lint/golint
 script:
+    - diff <(gofmt -d .) <("")
     - go vet -x ./...
     - golint -set_exit_status ./...
     - go test -v -race ./...
diff --git a/examples/airhorn/main.go b/examples/airhorn/main.go
index cc61301..5deccc0 100644
--- a/examples/airhorn/main.go
+++ b/examples/airhorn/main.go
@@ -1,7 +1,7 @@
 package main
 
 import (
-	"encoding/binary"
+"encoding/binary"
 	"flag"
 	"fmt"
 	"io"