diff --git a/lib/server/size.js b/lib/server/size.js
index 3e3e5f7a..16d259c6 100644
--- a/lib/server/size.js
+++ b/lib/server/size.js
@@ -32,7 +32,6 @@
         }
         
         function calcSize(error, size) {
-            
             if (error)
                 if (stopOnError)
                     Util.exec(callback, error);
@@ -73,7 +72,7 @@
         getDirInfo(dir);
         
         function getStat(dir, error, stat) {
-            var isFile, isDir;
+            var isDir;
             
             --fileCounter;
             
@@ -82,10 +81,9 @@
                     wasError    = true;
                     func(error);
                 } else {
-                    isFile  = stat.isFile(),
                     isDir   = stat.isDirectory();
                     
-                    if (isFile)
+                    if (!isDir)
                         func(null, stat.size);
                     else if (isDir) {
                         ++asyncRunning;