diff --git a/lib/controls/visibility_dialog.dart b/lib/controls/visibility_dialog.dart
index f4cba5c..96327d4 100644
--- a/lib/controls/visibility_dialog.dart
+++ b/lib/controls/visibility_dialog.dart
@@ -16,7 +16,7 @@ Future<bool?> showVisibilityDialog(
     }
 
     return circlesMap[c]?.name ?? 'Circle #$c';
-  });
+  }).toList();
 
   final excludedCircles = visibility.excludedCircleIds.map((c) {
     if (c == '~') {
@@ -24,21 +24,25 @@ Future<bool?> showVisibilityDialog(
     }
 
     return circlesMap[c]?.name ?? 'Circle #$c';
-  });
+  }).toList();
 
-  final allowedUsers = visibility.allowedUserIds.map(
-    (u) => cm.getById(u).fold(
-          onSuccess: (connection) => connection.handle,
-          onError: (_) => 'User $u',
-        ),
-  );
+  final allowedUsers = visibility.allowedUserIds
+      .map(
+        (u) => cm.getById(u).fold(
+              onSuccess: (connection) => connection.handle,
+              onError: (_) => 'User $u',
+            ),
+      )
+      .toList();
 
-  final excludedUsers = visibility.excludedUserIds.map(
-    (u) => cm.getById(u).fold(
-          onSuccess: (connection) => connection.handle,
-          onError: (_) => 'User $u',
-        ),
-  );
+  final excludedUsers = visibility.excludedUserIds
+      .map(
+        (u) => cm.getById(u).fold(
+              onSuccess: (connection) => connection.handle,
+              onError: (_) => 'User $u',
+            ),
+      )
+      .toList();
 
   return showDialog<bool>(
     context: context,