diff --git a/upnp/src/genlib/miniserver/miniserver.c b/upnp/src/genlib/miniserver/miniserver.c
index 80d2877fa..8b228a0dc 100644
--- a/upnp/src/genlib/miniserver/miniserver.c
+++ b/upnp/src/genlib/miniserver/miniserver.c
@@ -764,7 +764,10 @@ static int init_socket_suff(
 		goto error;
 		break;
 	}
-	inet_pton(domain, text_addr, addr);
+
+	if (inet_pton(domain, text_addr, addr) <= 0)
+		goto error;
+
 	s->fd = socket(domain, SOCK_STREAM, 0);
 	if (s->fd == INVALID_SOCKET) {
 		strerror_r(errno, errorBuffer, ERROR_BUFFER_LEN);