diff --git a/daemon/media_socket.c b/daemon/media_socket.c
index 17d8b733d..bc2d914cb 100644
--- a/daemon/media_socket.c
+++ b/daemon/media_socket.c
@@ -1094,7 +1094,7 @@ static void release_port_now(socket_t *r, ports_q *list, struct port_pool *pp) {
 
 	__C_DBG("Trying to release the port '%u'", port);
 
-	if (close_socket(r) == 0) {
+	if (close_socket(r)) {
 		__C_DBG("A socket for the '%u' has been closed", port);
 
 		iptables_del_rule(r);
diff --git a/lib/socket.c b/lib/socket.c
index 55b9b304b..5797886b5 100644
--- a/lib/socket.c
+++ b/lib/socket.c
@@ -857,26 +857,26 @@ bool reset_socket(socket_t *r) {
 
 	return true;
 }
-int close_socket(socket_t *r) {
+bool close_socket(socket_t *r) {
 	if (!r) {
 		__C_DBG("close() syscall not called, no socket");
-		return -1;
+		return false;
 	}
 	if (r->fd == -1) {
 		__C_DBG("close() syscall not called, fd=%d", r->fd);
-		return -1;
+		return false;
 	}
 
 	if (close(r->fd) != 0) {
 		__C_DBG("close() syscall fail, fd=%d", r->fd);
-		return -1;
+		return false;
 	}
 
 	__C_DBG("close() syscall success, fd=%d", r->fd);
 
 	reset_socket(r);
 
-	return 0;
+	return true;
 }
 
 // moves the contents of the socket object:
diff --git a/lib/socket.h b/lib/socket.h
index 609c05813..733f96e3b 100644
--- a/lib/socket.h
+++ b/lib/socket.h
@@ -279,7 +279,7 @@ bool open_v46_socket(socket_t *r, int type);
 bool connect_socket(socket_t *r, int type, const endpoint_t *ep);
 int connect_socket_nb(socket_t *r, int type, const endpoint_t *ep); // 1 == in progress
 int connect_socket_retry(socket_t *r); // retries connect() while in progress
-int close_socket(socket_t *r);
+bool close_socket(socket_t *r);
 bool reset_socket(socket_t *r);
 void move_socket(socket_t *dst, socket_t *src);
 void dummy_socket(socket_t *r, const sockaddr_t *);