diff --git a/modules/win-info.js b/modules/win-info.js
index fae48ad..7181b91 100644
--- a/modules/win-info.js
+++ b/modules/win-info.js
@@ -44,6 +44,7 @@ function av()
 {
     var child = require('child_process').execFile(process.env['windir'] + '\\System32\\wbem\\wmic.exe', ['wmic', '/Namespace:\\\\root\\SecurityCenter2', 'Path', 'AntiVirusProduct', 'get', '/FORMAT:CSV']);
     child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
+    child.stderr.str = ''; child.stderr.on('data', function (c) { this.str += c.toString(); })
     child.waitExit();
 
     var lines = child.stdout.str.trim().split('\r\n');