diff --git a/src/cfgparse.c b/src/cfgparse.c
index fc346b9..9752b81 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -299,15 +299,13 @@
 			l->state = LI_INIT;
 
 			if (ss.ss_family == AF_INET) {
-				((struct sockaddr_in *)(&l->addr))->sin_port = htons(port);
-				tcpv4_add_listener(l);
+				tcpv4_add_listener(l, port);
 			}
 			else if (ss.ss_family == AF_INET6) {
-				((struct sockaddr_in6 *)(&l->addr))->sin6_port = htons(port);
-				tcpv6_add_listener(l);
+				tcpv6_add_listener(l, port);
 			}
 			else {
-				uxst_add_listener(l);
+				uxst_add_listener(l, port);
 			}
 
 			jobs++;
diff --git a/src/proto_tcp.c b/src/proto_tcp.c
index 2bbde7a..6b1505a 100644
--- a/src/proto_tcp.c
+++ b/src/proto_tcp.c
@@ -1137,30 +1137,32 @@
 	return err;
 }
 
-/* Add listener to the list of tcpv4 listeners. The listener's state
- * is automatically updated from LI_INIT to LI_ASSIGNED. The number of
- * listeners is updated. This is the function to use to add a new listener.
+/* Add <listener> to the list of tcpv4 listeners, on port <port>. The
+ * listener's state is automatically updated from LI_INIT to LI_ASSIGNED.
+ * The number of listeners for the protocol is updated.
  */
-void tcpv4_add_listener(struct listener *listener)
+void tcpv4_add_listener(struct listener *listener, int port)
 {
 	if (listener->state != LI_INIT)
 		return;
 	listener->state = LI_ASSIGNED;
 	listener->proto = &proto_tcpv4;
+	((struct sockaddr_in *)(&listener->addr))->sin_port = htons(port);
 	LIST_ADDQ(&proto_tcpv4.listeners, &listener->proto_list);
 	proto_tcpv4.nb_listeners++;
 }
 
-/* Add listener to the list of tcpv4 listeners. The listener's state
- * is automatically updated from LI_INIT to LI_ASSIGNED. The number of
- * listeners is updated. This is the function to use to add a new listener.
+/* Add <listener> to the list of tcpv6 listeners, on port <port>. The
+ * listener's state is automatically updated from LI_INIT to LI_ASSIGNED.
+ * The number of listeners for the protocol is updated.
  */
-void tcpv6_add_listener(struct listener *listener)
+void tcpv6_add_listener(struct listener *listener, int port)
 {
 	if (listener->state != LI_INIT)
 		return;
 	listener->state = LI_ASSIGNED;
 	listener->proto = &proto_tcpv6;
+	((struct sockaddr_in *)(&listener->addr))->sin_port = htons(port);
 	LIST_ADDQ(&proto_tcpv6.listeners, &listener->proto_list);
 	proto_tcpv6.nb_listeners++;
 }
diff --git a/src/proto_uxst.c b/src/proto_uxst.c
index ac14d3b..767cd16 100644
--- a/src/proto_uxst.c
+++ b/src/proto_uxst.c
@@ -365,11 +365,11 @@
 	return ERR_NONE;
 }
 
-/* Add a listener to the list of unix stream listeners. The listener's state
- * is automatically updated from LI_INIT to LI_ASSIGNED. The number of
- * listeners is updated. This is the function to use to add a new listener.
+/* Add <listener> to the list of unix stream listeners (port is ignored). The
+ * listener's state is automatically updated from LI_INIT to LI_ASSIGNED.
+ * The number of listeners for the protocol is updated.
  */
-void uxst_add_listener(struct listener *listener)
+void uxst_add_listener(struct listener *listener, int port)
 {
 	if (listener->state != LI_INIT)
 		return;