diff --git a/ESP32-IDF_Temperture-Node-v2/main/hello_world_main.c b/ESP32-IDF_Temperture-Node-v2/main/hello_world_main.c
index 3d2d0b7e9..dfdea7312 100644
--- a/ESP32-IDF_Temperture-Node-v2/main/hello_world_main.c
+++ b/ESP32-IDF_Temperture-Node-v2/main/hello_world_main.c
@@ -46,6 +46,6 @@ i2c_config_t conf = {
 
 void app_main(void)
 {
-    i2c_bus = i2c_bus_create(I2C_MASTER_NUM, &conf);
+    i2c_bus = i2c_bus_create(0, &conf);
     
 }
\ No newline at end of file