diff --git a/openair2/LAYER2/NR_MAC_UE/config_ue.c b/openair2/LAYER2/NR_MAC_UE/config_ue.c
index 9412080d2e..2b8d6b1db6 100644
--- a/openair2/LAYER2/NR_MAC_UE/config_ue.c
+++ b/openair2/LAYER2/NR_MAC_UE/config_ue.c
@@ -341,7 +341,7 @@ static void config_common_ue(NR_UE_MAC_INST_t *mac,
 
   switch (scc->ssb_PositionsInBurst->present) {
   case 1 :
-    cfg->ssb_table.ssb_mask_list[0].ssb_mask = scc->ssb_PositionsInBurst->choice.shortBitmap.buf[0] << 24;
+    cfg->ssb_table.ssb_mask_list[0].ssb_mask = ((uint32_t) scc->ssb_PositionsInBurst->choice.shortBitmap.buf[0]) << 24;
     cfg->ssb_table.ssb_mask_list[1].ssb_mask = 0;
     break;
   case 2 :
diff --git a/openair2/LAYER2/NR_MAC_gNB/config.c b/openair2/LAYER2/NR_MAC_gNB/config.c
index 389304dd87..e0e11c5f2f 100644
--- a/openair2/LAYER2/NR_MAC_gNB/config.c
+++ b/openair2/LAYER2/NR_MAC_gNB/config.c
@@ -501,7 +501,7 @@ static void config_common(gNB_MAC_INST *nrmac, nr_pdsch_AntennaPorts_t pdsch_Ant
 
   switch (scc->ssb_PositionsInBurst->present) {
     case 1:
-      cfg->ssb_table.ssb_mask_list[0].ssb_mask.value = scc->ssb_PositionsInBurst->choice.shortBitmap.buf[0] << 24;
+      cfg->ssb_table.ssb_mask_list[0].ssb_mask.value = ((uint32_t)scc->ssb_PositionsInBurst->choice.shortBitmap.buf[0]) << 24;
       cfg->ssb_table.ssb_mask_list[1].ssb_mask.value = 0;
       break;
     case 2: