diff --git a/hardware/firmware/src/main.c b/hardware/firmware/src/main.c
index 144e806..de92606 100644
--- a/hardware/firmware/src/main.c
+++ b/hardware/firmware/src/main.c
@@ -34,7 +34,7 @@
 #define EXAMPLE_ESP_WIFI_SSID "MisakaNetwork"
 #define EXAMPLE_ESP_WIFI_PASS "20211028"
 #define EXAMPLE_ESP_MAXIMUM_RETRY 5
-#define EXAMPLE_MO_OCPP_BACKEND "ws://localhost:8180/steve/websocket/CentralSystemService"
+#define EXAMPLE_MO_OCPP_BACKEND "ws://192.168.1.100:8180/steve/websocket/CentralSystemService"
 #define EXAMPLE_MO_CHARGEBOXID "CP0001"
 #define EXAMPLE_MO_AUTHORIZATIONKEY "authkey123"