diff --git a/main/wifi/wifi_manager.c b/main/wifi/wifi_manager.c
index bdb3f43..6fa16b6 100644
--- a/main/wifi/wifi_manager.c
+++ b/main/wifi/wifi_manager.c
@@ -11,6 +11,7 @@
 #include "config/config_manager.h"
 #include "esp_log.h"
 #include "esp_wifi.h"
+#include "esp_mac.h"
 #include "esp_event.h"
 #include "esp_netif.h"
 #include "freertos/FreeRTOS.h"
@@ -67,13 +68,17 @@ static void wifi_event_handler(void* arg, esp_event_base_t event_base,
 
             case WIFI_EVENT_AP_STACONNECTED: {
                 wifi_event_ap_staconnected_t* event = (wifi_event_ap_staconnected_t*)event_data;
-                ESP_LOGI(TAG, "Client verbunden: " MACSTR, MAC2STR(event->mac));
+                ESP_LOGI(TAG, "Client verbunden: %02x:%02x:%02x:%02x:%02x:%02x",
+                         event->mac[0], event->mac[1], event->mac[2],
+                         event->mac[3], event->mac[4], event->mac[5]);
                 break;
             }
 
             case WIFI_EVENT_AP_STADISCONNECTED: {
                 wifi_event_ap_stadisconnected_t* event = (wifi_event_ap_stadisconnected_t*)event_data;
-                ESP_LOGI(TAG, "Client getrennt: " MACSTR, MAC2STR(event->mac));
+                ESP_LOGI(TAG, "Client getrennt: %02x:%02x:%02x:%02x:%02x:%02x",
+                         event->mac[0], event->mac[1], event->mac[2],
+                         event->mac[3], event->mac[4], event->mac[5]);
                 break;
             }