diff --git a/src/modules/module-rtp-sap.c b/src/modules/module-rtp-sap.c
index a175687b5..e07db2dbb 100644
--- a/src/modules/module-rtp-sap.c
+++ b/src/modules/module-rtp-sap.c
@@ -235,7 +235,7 @@ struct impl {
 	struct spa_source *timer;
 
 	char *ifname;
-	bool ttl;
+	uint32_t ttl;
 	bool mcast_loop;
 
 	struct sockaddr_storage src_addr;