diff --git a/src/s_serv.c b/src/s_serv.c
index 2092cd1..65e8e0f 100644
--- a/src/s_serv.c
+++ b/src/s_serv.c
@@ -681,7 +681,7 @@ burst_TS6(struct Client *client_p)
 		if(IsCapable(client_p, CAP_MLOCK))
 			sendto_one(client_p, ":%s MLOCK %ld %s %s",
 				   me.id, (long) chptr->channelts, chptr->chname,
-				   channel_mlock(client_p, chptr));
+				   channel_mlock(chptr, client_p));
 
 		hchaninfo.chptr = chptr;
 		call_hook(h_burst_channel, &hchaninfo);