diff --git a/frontend/src/components/ChatRoom/ChatRoom.module.css b/frontend/src/components/ChatRoom/ChatRoom.module.css
index 4c4d275..3021510 100644
--- a/frontend/src/components/ChatRoom/ChatRoom.module.css
+++ b/frontend/src/components/ChatRoom/ChatRoom.module.css
@@ -87,6 +87,7 @@
 }
 
 .form {
+  flex-shrink: 0;
   display: flex;
   align-items: center;
   gap: 8px;