diff --git a/lib/server/ponse.js b/lib/server/ponse.js
index a5283d00..52a3d3c2 100644
--- a/lib/server/ponse.js
+++ b/lib/server/ponse.js
@@ -264,12 +264,12 @@
     function getPathName(req) {
         var pathname, parsed;
         
-        if (req) {
-            parsed      = url.parse(req.url);
-            pathname    = parsed.pathname;
-            /* supporting of Russian language in directory names */
-            pathname    = querystring.unescape(pathname);
-        }
+        Util.checkArgs(arguments, ['req']);
+        
+        parsed      = url.parse(req.url);
+        pathname    = parsed.pathname;
+        /* supporting of Russian language in directory names */
+        pathname    = querystring.unescape(pathname);
         
         return pathname;
     }