diff --git a/hooks/after_plugin_install/npminstall.js b/hooks/after_plugin_install/npminstall.js
index 0b2a72b..d637440 100644
--- a/hooks/after_plugin_install/npminstall.js
+++ b/hooks/after_plugin_install/npminstall.js
@@ -1,4 +1,5 @@
 #!/usr/bin/env node
+"use strict";
 
-var exec = require('child_process').exec;
+var exec = require("child_process").exec;
 exec("npm install xml2js@0.4.x");
\ No newline at end of file