diff --git a/lib/webPanel.js b/lib/webPanel.js
index 22db2df..2d863a6 100644
--- a/lib/webPanel.js
+++ b/lib/webPanel.js
@@ -64,11 +64,16 @@
                 fs.readdir(dirPath, function (err, list) {
                     var dir = [];
 
-                    list.forEach(function (item) {
-                        dir.push(readNode(path.join(dirPath, item)));
-                    });
+                    if (err) {
+                        callback(err, null);
+                    } else {
+                        list.forEach(function (item) {
+                            dir.push(readNode(path.join(dirPath, item)));
+                        });
+
+                        callback(null, dir);
+                    }
 
-                    callback(null, dir);
                 });
             }