diff --git a/packages/stream_chat_flutter/lib/scrollable_positioned_list/src/scroll_view.dart b/packages/stream_chat_flutter/lib/scrollable_positioned_list/src/scroll_view.dart
index 91ea8d0f..13a7fdd3 100644
--- a/packages/stream_chat_flutter/lib/scrollable_positioned_list/src/scroll_view.dart
+++ b/packages/stream_chat_flutter/lib/scrollable_positioned_list/src/scroll_view.dart
@@ -26,8 +26,12 @@ class UnboundedCustomScrollView extends CustomScrollView {
     super.slivers,
     super.semanticChildCount,
     super.dragStartBehavior,
-    super.keyboardDismissBehavior = ScrollViewKeyboardDismissBehavior.manual,
-  }) : _anchor = anchor;
+    ScrollViewKeyboardDismissBehavior? keyboardDismissBehavior,
+  })  : _anchor = anchor,
+        super(
+          keyboardDismissBehavior: keyboardDismissBehavior ??
+              ScrollViewKeyboardDismissBehavior.manual,
+        );
 
   // [CustomScrollView] enforces constraints on [CustomScrollView.anchor], so
   // we need our own version.