diff --git a/sys/net/gnrc/netif/lorawan/gnrc_netif_lorawan.c b/sys/net/gnrc/netif/lorawan/gnrc_netif_lorawan.c
index 37f2518541..4cbf3f7a66 100644
--- a/sys/net/gnrc/netif/lorawan/gnrc_netif_lorawan.c
+++ b/sys/net/gnrc/netif/lorawan/gnrc_netif_lorawan.c
@@ -559,7 +559,7 @@ static int _set(gnrc_netif_t *netif, const gnrc_netapi_opt_t *opt)
     case NETOPT_LORAWAN_SNWKSINTKEY:
     case NETOPT_LORAWAN_NWKSENCKEY:
         assert(opt->data_len == LORAMAC_FNWKSINTKEY_LEN);
-        _memcpy_reversed(netif->lorawan.fnwksintkey, opt->data,
+        memcpy(netif->lorawan.fnwksintkey, opt->data,
                          LORAMAC_FNWKSINTKEY_LEN);
         break;
 #endif