diff --git a/src/libosmocc/socket.h b/src/libosmocc/socket.h
index a0f96ed..bcd8b7c 100644
--- a/src/libosmocc/socket.h
+++ b/src/libosmocc/socket.h
@@ -2,7 +2,7 @@
 #define OSMO_CC_SOCKET_H
 
 #define OSMO_CC_DEFAULT_PORT		4200
-#define OSMO_CC_DEFAULT_PORT_MAX	4299
+#define OSMO_CC_DEFAULT_PORT_MAX	4219
 
 #define OSMO_CC_SOCKET_TX_KEEPALIVE	10.0
 #define OSMO_CC_SOCKET_RX_KEEPALIVE	20.0