diff --git a/src/coap_debug.c b/src/coap_debug.c
index c8ca80fc..bfcc461e 100644
--- a/src/coap_debug.c
+++ b/src/coap_debug.c
@@ -210,7 +210,7 @@ size_t
 coap_print_addr(const coap_address_t *addr, unsigned char *buf, size_t len) {
 #if defined( HAVE_ARPA_INET_H ) || defined( HAVE_WS2TCPIP_H )
   const void *addrptr = NULL;
-  in_port_t port;
+  uint16_t port;
   unsigned char *p = buf;
   size_t need_buf;