diff --git a/lib/server/files.js b/lib/server/files.js
index 6a3cb71f..3c8f6818 100644
--- a/lib/server/files.js
+++ b/lib/server/files.js
@@ -55,8 +55,10 @@
                 }
             };
         
-        if (!pCallBack)
-            pCallback = pOptions;
+        if (Util.isFunction(pOptions)) {
+            pCallBack   = pOptions;
+            pOptions    = null;
+        }
         
         if (Util.isArray(pFiles))
             lFiles = pFiles;