diff --git a/intercepting-communication/udp-1/run b/intercepting-communication/udp-1/run
index 6e41ca4..301ebd6 100755
--- a/intercepting-communication/udp-1/run
+++ b/intercepting-communication/udp-1/run
@@ -19,7 +19,7 @@ class ServerHost(Host):
                 while True:
                     if not client_message:
                         break
-                    if client_message == "Hello, World!\n":
+                    if client_message == b"Hello, World!\n":
                         server_socket.sendto(flag.encode(), (client_host, client_port))
                         break
             except ConnectionError: