diff --git a/channels/chan_zap.c b/channels/chan_zap.c
index 9767b89137..f96ecc0b17 100644
--- a/channels/chan_zap.c
+++ b/channels/chan_zap.c
@@ -8207,13 +8207,13 @@ static struct zt_pvt *mkintf(int channel, const struct zt_chan_conf *conf, struc
 			}
 #endif
 #ifdef HAVE_PRI
-			if ((conf->chan.sig == SIG_PRI) || (conf->chan.sig == SIG_BRI) || (conf->chan.sig == SIG_BRI_PTMP) || (conf->chan.sig == SIG_GR303FXOKS) || (conf->chan.sig == SIG_GR303FXSKS)) {
+			if ((chan_sig == SIG_PRI) || (chan_sig == SIG_BRI) || (chan_sig == SIG_BRI_PTMP) || (chan_sig == SIG_GR303FXOKS) || (chan_sig == SIG_GR303FXSKS)) {
 				int offset;
 				int myswitchtype;
 				int matchesdchan;
 				int x,y;
 				offset = 0;
-				if (((conf->chan.sig == SIG_PRI) || (conf->chan.sig == SIG_BRI) || (conf->chan.sig == SIG_BRI_PTMP)) 
+				if (((chan_sig == SIG_PRI) || (chan_sig == SIG_BRI) || (chan_sig == SIG_BRI_PTMP)) 
 						&& ioctl(tmp->subs[SUB_REAL].zfd, ZT_AUDIOMODE, &offset)) {
 					ast_log(LOG_ERROR, "Unable to set clear mode on clear channel %d of span %d: %s\n", channel, p.spanno, strerror(errno));
 					destroy_zt_pvt(&tmp);
@@ -8238,9 +8238,9 @@ static struct zt_pvt *mkintf(int channel, const struct zt_chan_conf *conf, struc
 						destroy_zt_pvt(&tmp);
 						return NULL;
 					}
-					if ((conf->chan.sig == SIG_PRI) ||
-							(conf->chan.sig == SIG_BRI) ||
-							(conf->chan.sig == SIG_BRI_PTMP))
+					if ((chan_sig == SIG_PRI) ||
+							(chan_sig == SIG_BRI) ||
+							(chan_sig == SIG_BRI_PTMP))
 						myswitchtype = conf->pri.switchtype;
 					else
 						myswitchtype = PRI_SWITCH_GR303_TMC;