diff --git a/Doc/library/socketserver.rst b/Doc/library/socketserver.rst
index 662789b..5f68d33 100644
--- a/Doc/library/socketserver.rst
+++ b/Doc/library/socketserver.rst
@@ -456,9 +456,9 @@
            socket.sendto(data.upper(), self.client_address)
 
    if __name__ == "__main__":
-      HOST, PORT = "localhost", 9999
-      server = SocketServer.UDPServer((HOST, PORT), MyUDPHandler)
-      server.serve_forever()
+       HOST, PORT = "localhost", 9999
+       server = SocketServer.UDPServer((HOST, PORT), MyUDPHandler)
+       server.serve_forever()
 
 This is the client side::