diff --git a/drivers/sx127x/sx127x_netdev.c b/drivers/sx127x/sx127x_netdev.c
index cd7ad452f3..470a42f7bd 100644
--- a/drivers/sx127x/sx127x_netdev.c
+++ b/drivers/sx127x/sx127x_netdev.c
@@ -351,7 +351,7 @@ static int _set(netdev_t *netdev, netopt_t opt, const void *val, size_t len)
 
     switch(opt) {
         case NETOPT_STATE:
-            assert(len <= sizeof(netopt_state_t));
+            assert(len == sizeof(netopt_state_t));
             return _set_state(dev, *((const netopt_state_t*) val));
 
         case NETOPT_DEVICE_TYPE:
diff --git a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan.c b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan.c
index bbfdc51678..db93cfc806 100644
--- a/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan.c
+++ b/sys/net/gnrc/link_layer/lorawan/gnrc_lorawan.c
@@ -143,7 +143,7 @@ void gnrc_lorawan_open_rx_window(gnrc_lorawan_t *mac)
     if (mac->state == LORAWAN_STATE_RX_1) {
         xtimer_set_msg(&mac->rx, _DRIFT_FACTOR, &mac->msg, thread_getpid());
     }
-    uint8_t state = NETOPT_STATE_RX;
+    netopt_state_t state = NETOPT_STATE_RX;
     dev->driver->set(dev, NETOPT_STATE, &state, sizeof(state));
 }