diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
index a5cfaefca2..94baf2adbd 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
@@ -859,7 +859,12 @@ void pf_dl(module_id_t module_id,
     sched_pdsch->pucch_allocation = alloc;
     uint32_t TBS = 0;
     uint16_t rbSize;
-    const int oh = 3*sched_ctrl->dl_pdus_total + 2 * (frame == (sched_ctrl->ta_frame + 10) % 1024);
+    // Fix me: currently, the RLC does not give us the total number of PDUs
+    // awaiting. Therefore, for the time being, we put a fixed overhead of 12
+    // (for 4 PDUs) and optionally + 2 for TA. Once RLC gives the number of
+    // PDUs, we replace with 3 * numPDUs
+    const int oh = 3 * 4 + 2 * (frame == (sched_ctrl->ta_frame + 10) % 1024);
+    //const int oh = 3 * sched_ctrl->dl_pdus_total + 2 * (frame == (sched_ctrl->ta_frame + 10) % 1024);
     nr_find_nb_rb(sched_pdsch->Qm,
                   sched_pdsch->R,
                   ps->nrOfLayers,