diff --git a/bin/wechat-devtools-cli b/bin/wechat-devtools-cli
index c4dc103..f3e1082 100755
--- a/bin/wechat-devtools-cli
+++ b/bin/wechat-devtools-cli
@@ -1,4 +1,4 @@
-#! /bin/bash
+#!/bin/bash
 
 SOURCE="${BASH_SOURCE[0]}"
 while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink