diff --git a/hardware/displays/U8G2/u8g2_esp32_hal.h b/hardware/displays/U8G2/u8g2_esp32_hal.h
index 20ed44fc..7b2bb6ce 100644
--- a/hardware/displays/U8G2/u8g2_esp32_hal.h
+++ b/hardware/displays/U8G2/u8g2_esp32_hal.h
@@ -15,7 +15,7 @@
 
 #define U8G2_ESP32_HAL_UNDEFINED (-1)
 
-#define I2C_MASTER_NUM I2C_NUM_1           //  I2C port number for master dev
+#define I2C_MASTER_NUM I2C_NUM_0           //  I2C port number for master dev
 #define I2C_MASTER_TX_BUF_DISABLE   0      //  I2C master do not need buffer
 #define I2C_MASTER_RX_BUF_DISABLE   0      //  I2C master do not need buffer
 #define I2C_MASTER_FREQ_HZ          50000  //  I2C master clock frequency