diff --git a/sys/arm/stm32l031x6/u8g2_rtc/u8x8cb.c b/sys/arm/stm32l031x6/u8g2_rtc/u8x8cb.c
index 7de3fa72..2af686f3 100644
--- a/sys/arm/stm32l031x6/u8g2_rtc/u8x8cb.c
+++ b/sys/arm/stm32l031x6/u8g2_rtc/u8x8cb.c
@@ -57,7 +57,7 @@ uint8_t u8x8_gpio_and_delay_stm32l0(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int,
       break;
     case U8X8_MSG_DELAY_I2C:
       /* arg_int is 1 or 4: 100KHz (5us) or 400KHz (1.25us) */
-      delay_micro_seconds(arg_int<=2?5:1);
+      //delay_micro_seconds(arg_int<=2?5:1);
       break;
     
     case U8X8_MSG_GPIO_I2C_CLOCK: