diff --git a/src/main.go b/src/main.go
index d50ea05..ec1ad38 100644
--- a/src/main.go
+++ b/src/main.go
@@ -6,10 +6,11 @@ import (
 )
 
 func Format(source string) interface{} {
-	if ret, err := format.Source([]byte(source)); err == nil {
-		return string(ret)
+	ret, err := format.Source([]byte(source))
+	if err != nil {
+		return err
 	}
-	return false
+	return ret
 }
 
 func main() {