diff --git a/tools/goctl/goctl.go b/tools/goctl/goctl.go
index 2bf6b32f..4c4511fe 100644
--- a/tools/goctl/goctl.go
+++ b/tools/goctl/goctl.go
@@ -215,7 +215,7 @@ var commands = []cli.Command{
 			},
 			{
 				Name:  "go",
-				Usage: "generate go files for provided api in yaml file",
+				Usage: "generate go files for provided api in api file",
 				Flags: []cli.Flag{
 					cli.StringFlag{
 						Name:  "dir",