diff --git a/lib/server/main.js b/lib/server/main.js
index 3c3892f5..855b52e3 100644
--- a/lib/server/main.js
+++ b/lib/server/main.js
@@ -328,7 +328,9 @@
         if(lRet){
             var p       = pParams;
             p.status    = FILE_NOT_FOUND;
-            p.data      = p.data || pError.toString();
+            if (!p.data && pError)
+              p.data = pError.toString();
+
             sendResponse(p);
         }
     }