diff --git a/docker.go b/docker.go
index 1e07cc8d7b..4245f8c400 100644
--- a/docker.go
+++ b/docker.go
@@ -81,7 +81,7 @@ func noArgs(cmd *cobra.Command, args []string) error {
 		return nil
 	}
 	return fmt.Errorf(
-		"docker: '%s' is not a docker command.\nSee 'docker --help'.", args[0])
+		"docker: '%s' is not a docker command.\nSee 'docker --help'", args[0])
 }
 
 func main() {