diff --git a/src/chatbox.tsx b/src/chatbox.tsx
index 2d7cd1e..247709a 100644
--- a/src/chatbox.tsx
+++ b/src/chatbox.tsx
@@ -840,6 +840,8 @@ export default function ChatBOX(props: {
             if (event.ctrlKey && event.code === "Enter") {
               send(event.target.value, true);
               setInputMsg("");
+              event.target.value = "";
+              autoHeight(event);
               return;
             }
             autoHeight(event);
diff --git a/src/textarea.tsx b/src/textarea.tsx
index 256426c..f8a807d 100644
--- a/src/textarea.tsx
+++ b/src/textarea.tsx
@@ -5,4 +5,5 @@ export const autoHeight = (event: any) => {
     event.target.scrollHeight,
     window.innerHeight * 0.7
   )}px`;
+  console.log("set auto height", event.target.style.height);
 };