diff --git a/shared/n-dhcp4/src/n-dhcp4-client.c b/shared/n-dhcp4/src/n-dhcp4-client.c
index a492a74c6..5f7794fb1 100644
--- a/shared/n-dhcp4/src/n-dhcp4-client.c
+++ b/shared/n-dhcp4/src/n-dhcp4-client.c
@@ -183,7 +183,11 @@ _c_public_ void n_dhcp4_client_config_set_request_broadcast(NDhcp4ClientConfig *
  */
 _c_public_ void n_dhcp4_client_config_set_mac(NDhcp4ClientConfig *config, const uint8_t *mac, size_t n_mac) {
         config->n_mac = n_mac;
-        memcpy(config->mac, mac, c_min(n_mac, sizeof(config->mac)));
+
+        if (n_mac > sizeof(config->mac))
+                n_mac = sizeof(config->mac);
+
+        memcpy(config->mac, mac, n_mac);
 }
 
 /**
@@ -209,7 +213,11 @@ _c_public_ void n_dhcp4_client_config_set_mac(NDhcp4ClientConfig *config, const
  */
 _c_public_ void n_dhcp4_client_config_set_broadcast_mac(NDhcp4ClientConfig *config, const uint8_t *mac, size_t n_mac) {
         config->n_broadcast_mac = n_mac;
-        memcpy(config->broadcast_mac, mac, c_min(n_mac, sizeof(config->broadcast_mac)));
+
+        if (n_mac > sizeof(config->mac))
+                n_mac = sizeof(config->mac);
+
+        memcpy(config->broadcast_mac, mac, n_mac);
 }
 
 /**
diff --git a/shared/n-dhcp4/src/n-dhcp4-outgoing.c b/shared/n-dhcp4/src/n-dhcp4-outgoing.c
index bb33bbdbe..c44b5880a 100644
--- a/shared/n-dhcp4/src/n-dhcp4-outgoing.c
+++ b/shared/n-dhcp4/src/n-dhcp4-outgoing.c
@@ -220,8 +220,9 @@ int n_dhcp4_outgoing_append(NDhcp4Outgoing *outgoing,
                 /* try fitting into allowed OPTIONs space */
                 if (outgoing->max_size - outgoing->i_message >= n_data + 2U + 3U + 1U) {
                         /* try over-allocation to reduce allocation pressure */
-                        n = c_min(outgoing->max_size,
-                                  outgoing->n_message + n_data + 128);
+                        n = outgoing->n_message + n_data + 128;
+                        if (n > outgoing->max_size)
+                                n = outgoing->max_size;
                         m = realloc(outgoing->message, n);
                         if (!m)
                                 return -ENOMEM;