diff --git a/lib/utils/app_scheme.dart b/lib/utils/app_scheme.dart
index f727b307e..dad9b3f08 100644
--- a/lib/utils/app_scheme.dart
+++ b/lib/utils/app_scheme.dart
@@ -409,7 +409,7 @@ class PiliScheme {
           if (query != null && query['id'] != null) {
             id = 'cv${matchNum(query['id']!).first}';
           } else {
-            id = 'cv${matchNum(path).first}';
+            id = 'cv${matchNum(path).firstOrNull}';
           }
           Utils.toDupNamed('/htmlRender', parameters: {
             'url': value.toString(),