diff --git a/opencv_dev/assets/opencv_exec.js b/opencv_dev/assets/opencv_exec.js
index 9d10b74..e59971e 100644
--- a/opencv_dev/assets/opencv_exec.js
+++ b/opencv_dev/assets/opencv_exec.js
@@ -9680,6 +9680,6 @@
         exports["cv"] = cv;
 
     if (typeof Module === 'undefined')
-        Module = {};
+        var Module = {};
     return cv(Module);
 }));