diff --git a/openbsc/src/trau_mux.c b/openbsc/src/trau_mux.c
index 7615b62..04febbd 100644
--- a/openbsc/src/trau_mux.c
+++ b/openbsc/src/trau_mux.c
@@ -170,7 +170,8 @@
 			return -EINVAL;
 		if (!ue->callref)
 			return -EINVAL;
-		msg = msgb_alloc(sizeof(struct gsm_trau_frame) + sizeof(tf));
+		msg = msgb_alloc(sizeof(struct gsm_trau_frame) + sizeof(tf),
+				 "TRAU");
 		if (!msg)
 			return -ENOMEM;
 		frame = (struct gsm_trau_frame *)msg->data;