diff --git a/server-clear.py b/server-clear.py
index 9dbd393..f3965c2 100755
--- a/server-clear.py
+++ b/server-clear.py
@@ -21,6 +21,7 @@ def connection_handle(conn):
             conn.send(b'3')
     else:
         print('Invalid argument')
+        conn.send(b'3')
         return False
     return True