diff --git a/monkey/infection_monkey/network/relay/relay_connection_handler.py b/monkey/infection_monkey/network/relay/relay_connection_handler.py
index 964a1121a..91f37b520 100644
--- a/monkey/infection_monkey/network/relay/relay_connection_handler.py
+++ b/monkey/infection_monkey/network/relay/relay_connection_handler.py
@@ -26,7 +26,9 @@ class RelayConnectionHandler:
         addr, _ = sock.getpeername()
         addr = IPv4Address(addr)
 
-        control_message = sock.recv(socket.MSG_PEEK)
+        control_message = sock.recv(
+            len(RELAY_CONTROL_MESSAGE_REMOVE_FROM_WAITLIST), socket.MSG_PEEK
+        )
 
         if control_message.startswith(RELAY_CONTROL_MESSAGE_REMOVE_FROM_WAITLIST):
             self._relay_user_handler.disconnect_user(addr)