diff --git a/lib/nodes/rtp.c b/lib/nodes/rtp.c
index 964be3b05..6c9ae89c2 100644
--- a/lib/nodes/rtp.c
+++ b/lib/nodes/rtp.c
@@ -43,7 +43,7 @@
 #include <villas/hook.h>
 #include <villas/format_type.h>
 
-pthread_t re_pthread;
+static pthread_t re_pthread;
 
 static int rtp_set_rate(struct node *n, double rate)
 {
@@ -309,7 +309,7 @@ int rtp_stop(struct node *n)
 	int ret;
 	struct rtp *r = (struct rtp *) n->_vd;
 
-	/*mem_deref(r->rs);*/
+	mem_deref(r->rs);
 
 	ret = queue_signalled_close(&r->recv_queue);
 	if (ret)