diff --git a/daemon/media_socket.c b/daemon/media_socket.c
index aa25ee9dc..74da5144a 100644
--- a/daemon/media_socket.c
+++ b/daemon/media_socket.c
@@ -2881,7 +2881,7 @@ static void rtp_ext_mid_kernel(kernelize_state *s, unsigned int component, struc
 		return;
 	if (!bundle->extmap_id[RTP_EXT_MID])
 		return;
-	if (bundle->extmap_id[RTP_EXT_MID]->id != bundle->extmap_id[RTP_EXT_MID]->id)
+	if (bundle->extmap_id[RTP_EXT_MID]->id != media->extmap_id[RTP_EXT_MID]->id)
 		return;
 
 	s->reti.extmap = 1;