diff --git a/packages/stream_chat_flutter/CHANGELOG.md b/packages/stream_chat_flutter/CHANGELOG.md
index 66c196d65..d6b7868e5 100644
--- a/packages/stream_chat_flutter/CHANGELOG.md
+++ b/packages/stream_chat_flutter/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 🐞 Fixed
 
+- Fixed users with `sendReply` capability unable to send replies in threads.
 - Fixed delete/flag message dialogs executing action when dialog is dismissed without confirmation.
 
 ## Upcoming
diff --git a/packages/stream_chat_flutter/lib/src/message_input/stream_message_input.dart b/packages/stream_chat_flutter/lib/src/message_input/stream_message_input.dart
index de88469d3..c76604860 100644
--- a/packages/stream_chat_flutter/lib/src/message_input/stream_message_input.dart
+++ b/packages/stream_chat_flutter/lib/src/message_input/stream_message_input.dart
@@ -619,6 +619,12 @@ class StreamMessageInputState extends State<StreamMessageInput>
   Widget build(BuildContext context) {
     bool canSendOrUpdateMessage(List<ChannelCapability> capabilities) {
       var result = capabilities.contains(ChannelCapability.sendMessage);
+
+      final insideThread = _effectiveController.message.parentId != null;
+      if (insideThread) {
+        result |= capabilities.contains(ChannelCapability.sendReply);
+      }
+
       if (_isEditing) {
         result |= capabilities.contains(ChannelCapability.updateOwnMessage);
         result |= capabilities.contains(ChannelCapability.updateAnyMessage);