diff --git a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
index e226a2992def7bd74e813042d654a423b5e83f9d..77c3731ef9459398f142805f93f2469d5c15081a 100644
--- a/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
+++ b/openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_uci.c
@@ -582,7 +582,7 @@ static void handle_dl_harq(module_id_t mod_id,
     harq->ndi ^= 1;
     NR_mac_stats_t *stats = &UE_info->mac_stats[UE_id];
     stats->dlsch_errors++;
-    LOG_D(NR_MAC, "retransmission error for UE %d (total %d)\n", UE_id, stats->dlsch_errors);
+    LOG_D(NR_MAC, "retransmission error for UE %d (total %lu)\n", UE_id, stats->dlsch_errors);
   } else {
     add_tail_nr_list(&UE_info->UE_sched_ctrl[UE_id].retrans_dl_harq, harq_pid);
     harq->round++;
diff --git a/openair2/LAYER2/NR_MAC_gNB/main.c b/openair2/LAYER2/NR_MAC_gNB/main.c
index 0089263620f56f2beb76764ac63f32d7f09b8470..df63001bff28b35f42fc442dbb61aa7fc1ddcf8c 100644
--- a/openair2/LAYER2/NR_MAC_gNB/main.c
+++ b/openair2/LAYER2/NR_MAC_gNB/main.c
@@ -94,7 +94,7 @@ void dump_mac_stats(gNB_MAC_INST *gNB, char *output, int strlen)
       avg_rsrp,
       stats->num_rsrp_meas);
 
-    stroff+=sprintf(output+stroff,"UE %d: dlsch_rounds %d/%d/%d/%d, dlsch_errors %d, pucch0_DTX %d, BLER %.5f MCS %d\n",
+    stroff+=sprintf(output+stroff,"UE %d: dlsch_rounds %lu/%lu/%lu/%lu, dlsch_errors %lu, pucch0_DTX %d, BLER %.5f MCS %d\n",
           UE_id,
           stats->dlsch_rounds[0], stats->dlsch_rounds[1],
           stats->dlsch_rounds[2], stats->dlsch_rounds[3],
@@ -105,25 +105,25 @@ void dump_mac_stats(gNB_MAC_INST *gNB, char *output, int strlen)
 
     stats->num_rsrp_meas = 0;
     stats->cumul_rsrp = 0 ;
-    stroff+=sprintf(output+stroff,"UE %d: dlsch_total_bytes %d\n", UE_id, stats->dlsch_total_bytes);
-    stroff+=sprintf(output+stroff,"UE %d: ulsch_rounds %d/%d/%d/%d, ulsch_DTX %d, ulsch_errors %d\n",
+    stroff+=sprintf(output+stroff,"UE %d: dlsch_total_bytes %lu\n", UE_id, stats->dlsch_total_bytes);
+    stroff+=sprintf(output+stroff,"UE %d: ulsch_rounds %lu/%lu/%lu/%lu, ulsch_DTX %d, ulsch_errors %lu\n",
                     UE_id,
                     stats->ulsch_rounds[0], stats->ulsch_rounds[1],
                     stats->ulsch_rounds[2], stats->ulsch_rounds[3],
                     stats->ulsch_DTX,
                     stats->ulsch_errors);
     stroff+=sprintf(output+stroff,
-                    "UE %d: ulsch_total_bytes_scheduled %d, ulsch_total_bytes_received %d\n",
+                    "UE %d: ulsch_total_bytes_scheduled %lu, ulsch_total_bytes_received %lu\n",
                     UE_id,
                     stats->ulsch_total_bytes_scheduled, stats->ulsch_total_bytes_rx);
     for (int lc_id = 0; lc_id < 63; lc_id++) {
       if (stats->lc_bytes_tx[lc_id] > 0) {
-        stroff+=sprintf(output+stroff, "UE %d: LCID %d: %d bytes TX\n", UE_id, lc_id, stats->lc_bytes_tx[lc_id]);
-	LOG_D(NR_MAC, "UE %d: LCID %d: %d bytes TX\n", UE_id, lc_id, stats->lc_bytes_tx[lc_id]);
+        stroff+=sprintf(output+stroff, "UE %d: LCID %d: %lu bytes TX\n", UE_id, lc_id, stats->lc_bytes_tx[lc_id]);
+	LOG_D(NR_MAC, "UE %d: LCID %d: %lu bytes TX\n", UE_id, lc_id, stats->lc_bytes_tx[lc_id]);
       }
       if (stats->lc_bytes_rx[lc_id] > 0) {
-        stroff+=sprintf(output+stroff, "UE %d: LCID %d: %d bytes RX\n", UE_id, lc_id, stats->lc_bytes_rx[lc_id]);
-	LOG_D(NR_MAC, "UE %d: LCID %d: %d bytes RX\n", UE_id, lc_id, stats->lc_bytes_rx[lc_id]);
+        stroff+=sprintf(output+stroff, "UE %d: LCID %d: %lu bytes RX\n", UE_id, lc_id, stats->lc_bytes_rx[lc_id]);
+	LOG_D(NR_MAC, "UE %d: LCID %d: %lu bytes RX\n", UE_id, lc_id, stats->lc_bytes_rx[lc_id]);
       }
     }
   }
diff --git a/openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h b/openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
index 81be37872b82b73ff965122adbdc4b52ab1ea056..41acc734ecfcbc73fd58ea405aec999540c4793f 100644
--- a/openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
+++ b/openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h
@@ -618,19 +618,19 @@ typedef struct {
 } NRUEcontext_t;
 
 typedef struct {
-  int lc_bytes_tx[64];
-  int lc_bytes_rx[64];
-  int dlsch_rounds[8];
-  int dlsch_errors;
-  int dlsch_total_bytes;
+  uint64_t lc_bytes_tx[64];
+  uint64_t lc_bytes_rx[64];
+  uint64_t dlsch_rounds[8];
+  uint64_t dlsch_errors;
+  uint64_t dlsch_total_bytes;
   int dlsch_current_bytes;
-  int ulsch_rounds[8];
-  int ulsch_errors;
-  int ulsch_DTX;
-  int ulsch_total_bytes_scheduled;
-  int ulsch_total_bytes_rx;
+  uint64_t ulsch_rounds[8];
+  uint64_t ulsch_errors;
+  uint32_t ulsch_DTX;
+  uint64_t ulsch_total_bytes_scheduled;
+  uint64_t ulsch_total_bytes_rx;
   int ulsch_current_bytes;
-  int pucch0_DTX;
+  uint32_t pucch0_DTX;
   int cumul_rsrp;
   uint8_t num_rsrp_meas;
 } NR_mac_stats_t;