diff --git a/hw/net/e1000.c b/hw/net/e1000.c
index 9cd3d6f495..0dfdf47313 100644
--- a/hw/net/e1000.c
+++ b/hw/net/e1000.c
@@ -632,9 +632,8 @@ xmit_seg(E1000State *s)
 
     e1000x_inc_reg_if_not_full(s->mac_reg, TPT);
     e1000x_grow_8reg_if_not_full(s->mac_reg, TOTL, s->tx.size + 4);
-    s->mac_reg[GPTC] = s->mac_reg[TPT];
-    s->mac_reg[GOTCL] = s->mac_reg[TOTL];
-    s->mac_reg[GOTCH] = s->mac_reg[TOTH];
+    e1000x_inc_reg_if_not_full(s->mac_reg, GPTC);
+    e1000x_grow_8reg_if_not_full(s->mac_reg, GOTCL, s->tx.size + 4);
 }
 
 static void
diff --git a/hw/net/e1000e_core.c b/hw/net/e1000e_core.c
index fc9cdb4528..c71d82ce1d 100644
--- a/hw/net/e1000e_core.c
+++ b/hw/net/e1000e_core.c
@@ -687,9 +687,8 @@ e1000e_on_tx_done_update_stats(E1000ECore *core, struct NetTxPkt *tx_pkt)
         g_assert_not_reached();
     }
 
-    core->mac[GPTC] = core->mac[TPT];
-    core->mac[GOTCL] = core->mac[TOTL];
-    core->mac[GOTCH] = core->mac[TOTH];
+    e1000x_inc_reg_if_not_full(core->mac, GPTC);
+    e1000x_grow_8reg_if_not_full(core->mac, GOTCL, tot_len);
 }
 
 static void
diff --git a/hw/net/e1000x_common.c b/hw/net/e1000x_common.c
index a8d93870b5..3fdc34f753 100644
--- a/hw/net/e1000x_common.c
+++ b/hw/net/e1000x_common.c
@@ -217,15 +217,14 @@ e1000x_update_rx_total_stats(uint32_t *mac,
 
     e1000x_increase_size_stats(mac, PRCregs, data_fcs_size);
     e1000x_inc_reg_if_not_full(mac, TPR);
-    mac[GPRC] = mac[TPR];
+    e1000x_inc_reg_if_not_full(mac, GPRC);
     /* TOR - Total Octets Received:
     * This register includes bytes received in a packet from the <Destination
     * Address> field through the <CRC> field, inclusively.
     * Always include FCS length (4) in size.
     */
     e1000x_grow_8reg_if_not_full(mac, TORL, data_size + 4);
-    mac[GORCL] = mac[TORL];
-    mac[GORCH] = mac[TORH];
+    e1000x_grow_8reg_if_not_full(mac, GORCL, data_size + 4);
 }
 
 void