diff --git a/res/panorama/script.js b/res/panorama/script.js
index 6385b19..393bf0b 100644
--- a/res/panorama/script.js
+++ b/res/panorama/script.js
@@ -85,5 +85,5 @@ function check_param()
     }
 
     img_url = 'http://207.180.212.190/fht/fabrika_imgs/' + img_url + '.jpg'; //TODO: Change
-    ASPECT_RATIO = x / y;
+    if (!x.startsWith(undefined)) ASPECT_RATIO = x / y;
 }
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