diff --git a/lib/server/object.js b/lib/server/object.js
index c13afbb9..accbf5dd 100644
--- a/lib/server/object.js
+++ b/lib/server/object.js
@@ -104,7 +104,7 @@ exports.Minify={
                         'npm i minify');
                 }
                 
-                var lOptimizeParams;
+                var lOptimizeParams = [];
                 if (this._allowed.js) {
                       /*
                  * temporary changed dir path,