diff --git a/examples/common/asynchronous-server.py b/examples/common/asynchronous-server.py
index f8d4669de..377e7e8ea 100755
--- a/examples/common/asynchronous-server.py
+++ b/examples/common/asynchronous-server.py
@@ -103,7 +103,7 @@
 #---------------------------------------------------------------------------# 
 # run the server you want
 #---------------------------------------------------------------------------# 
-StartTcpServer(context, identity=identity, address=("localhost", 5020))
+StartTcpServer(context, identity=identity, address=("localhost", 502))
 #StartUdpServer(context, identity=identity, address=("localhost", 502))
 #StartSerialServer(context, identity=identity, port='/dev/pts/3', framer=ModbusRtuFramer)
 #StartSerialServer(context, identity=identity, port='/dev/pts/3', framer=ModbusAsciiFramer)