diff --git a/src/gprs_rlcmac_sched.cpp b/src/gprs_rlcmac_sched.cpp
index 76ddac4..504f6b7 100644
--- a/src/gprs_rlcmac_sched.cpp
+++ b/src/gprs_rlcmac_sched.cpp
@@ -40,7 +40,7 @@
 	poll_fn = poll_fn % 2715648;
 	llist_for_each_entry(tbf, &bts->ul_tbfs, list) {
 		/* this trx, this ts */
-		if (tbf->trx_no != trx || tbf->control_ts != ts)
+		if (tbf->trx->trx_no != trx || tbf->control_ts != ts)
 			continue;
 		/* polling for next uplink block */
 		if (tbf->poll_state == GPRS_RLCMAC_POLL_SCHED
@@ -56,7 +56,7 @@
 	}
 	llist_for_each_entry(tbf, &bts->dl_tbfs, list) {
 		/* this trx, this ts */
-		if (tbf->trx_no != trx || tbf->control_ts != ts)
+		if (tbf->trx->trx_no != trx || tbf->control_ts != ts)
 			continue;
 		/* polling for next uplink block */
 		if (tbf->poll_state == GPRS_RLCMAC_POLL_SCHED