diff --git a/www/js/zui3/zin.js b/www/js/zui3/zin.js
index 4c5f9f9367..b15fd5f251 100644
--- a/www/js/zui3/zin.js
+++ b/www/js/zui3/zin.js
@@ -1521,7 +1521,7 @@
             options.url = url;
         }
 
-        if(url.includes('#'))
+        if(typeof url === 'string' && url.includes('#'))
         {
             const hash = url.split('#')[1];
             if(hash === 'open-modal' || hash.startsWith('open-modal?'))