diff --git a/lib/widgets/chat_page/chat_box.dart b/lib/widgets/chat_page/chat_box.dart
index 3497ce9..8fd5acb 100644
--- a/lib/widgets/chat_page/chat_box.dart
+++ b/lib/widgets/chat_page/chat_box.dart
@@ -45,7 +45,7 @@ class ChatBox extends HookConsumerWidget {
     }
 
     void send() {
-      if (controller.value.text.isEmpty) return;
+      if (controller.value.text.trim().isEmpty) return;
       ref
           .watch(RoomChatController.provider(room).notifier)
           .send(