diff --git a/web/screens/Thread/ThreadCenterPanel/ChatInput/RichTextEditor.tsx b/web/screens/Thread/ThreadCenterPanel/ChatInput/RichTextEditor.tsx
index 7166e3975..f784e7ac0 100644
--- a/web/screens/Thread/ThreadCenterPanel/ChatInput/RichTextEditor.tsx
+++ b/web/screens/Thread/ThreadCenterPanel/ChatInput/RichTextEditor.tsx
@@ -314,7 +314,7 @@ const RichTextEditor = ({
 
   const handleKeyDown = useCallback(
     (event: React.KeyboardEvent) => {
-      if (event.key === 'Enter' && !event.shiftKey) {
+      if (event.key === 'Enter' && !event.shiftKey && event.nativeEvent.isComposing === false) {
         event.preventDefault()
         if (messages[messages.length - 1]?.status !== MessageStatus.Pending) {
           sendChatMessage(currentPrompt)