diff --git a/lib/app_sources/vivoappstore.dart b/lib/app_sources/vivoappstore.dart
index fbd512e..9b55ce2 100644
--- a/lib/app_sources/vivoappstore.dart
+++ b/lib/app_sources/vivoappstore.dart
@@ -89,7 +89,7 @@ class VivoAppStore extends AppSource {
 
   String parseVivoAppId(String url) {
     var appId = Uri.parse(url.replaceAll('/#', '')).queryParameters['appId'];
-    if (appId == null) {
+    if (appId == null || appId.isEmpty) {
       throw InvalidURLError(name);
     }
     return appId;