diff --git a/index.html b/index.html
index 788a3d98e..fad6fd43a 100644
--- a/index.html
+++ b/index.html
@@ -25,12 +25,12 @@
 
   			let prefix = '';
 
-  			if (url.includes('://homebrewery-stage.')) {
+  			if (url && url?.includes('://homebrewery-stage.')) {
   				prefix = `Stage `;
-  			} else if (url.includes('://homebrewery-pr-')) {
+  			} else if (url?.includes('://homebrewery-pr-')) {
   				const match = url.match(/pr-(\d+)/);
   				if (match) prefix = `PR-${match[1]} `;
-  			} else if (url.includes('://localhost')) {
+  			} else if (url?.includes('://localhost')) {
   				prefix = 'Local ';
   			}