diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
index 0d857a0ba9..cd34a543c7 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
@@ -895,7 +895,10 @@ void nr_fr1_dlsch_preprocessor(module_id_t module_id, frame_t frame, sub_frame_t
   /* This is temporary and it assumes all UEs have the same BWP and TDA*/
   int UE_id = UE_info->list.head;
   NR_UE_sched_ctrl_t *sched_ctrl = &UE_info->UE_sched_ctrl[UE_id];
-  const int tda = RC.nrmac[module_id]->preferred_dl_tda[sched_ctrl->active_bwp ? sched_ctrl->active_bwp->bwp_Id : 0][slot];
+  const int bwp_id = sched_ctrl->active_bwp ? sched_ctrl->active_bwp->bwp_Id : 0;
+  if (!RC.nrmac[module_id]->preferred_dl_tda[bwp_id])
+    return;
+  const int tda = RC.nrmac[module_id]->preferred_dl_tda[bwp_id][slot];
   int startSymbolIndex, nrOfSymbols;
   const struct NR_PDSCH_TimeDomainResourceAllocationList *tdaList = sched_ctrl->active_bwp ?
       sched_ctrl->active_bwp->bwp_Common->pdsch_ConfigCommon->choice.setup->pdsch_TimeDomainAllocationList :