diff --git a/lib/util/cleanup_url.dart b/lib/util/cleanup_url.dart
index 6f3f610..f8182fd 100644
--- a/lib/util/cleanup_url.dart
+++ b/lib/util/cleanup_url.dart
@@ -1,7 +1,12 @@
 /// Returns host of a url without a leading 'www.' or protocol if present also
 /// removes trailing '/'
-String cleanUpUrl(String url) =>
-    urlHost(url.startsWith('https://') ? url : 'https://$url');
+String cleanUpUrl(String url) {
+  try {
+    return urlHost(url.startsWith('https://') ? url : 'https://$url');
+  } on FormatException catch (_) {
+    return '';
+  }
+}
 
 // Returns host of a url without a leading 'www.' if present
 String urlHost(String url) {