diff --git a/lib/screens/issue.dart b/lib/screens/issue.dart
index 326ea4f..2b11c19 100644
--- a/lib/screens/issue.dart
+++ b/lib/screens/issue.dart
@@ -291,7 +291,7 @@ __typename
     } else {
       timelineParams = 'first: $pageSize';
       if (cursor != null) {
-        timelineParams += ', after: $cursor';
+        timelineParams += ', after: "$cursor"';
       }
     }