diff --git a/lib/stat.js b/lib/stat.js
index 0323f6e..aef4453 100644
--- a/lib/stat.js
+++ b/lib/stat.js
@@ -1,5 +1,4 @@
-var os        = require('os'),
-    exec      = require('child_process').exec;
+var os        = require('os');
 
 /**
  * System states