diff --git a/boards/mro/ctrl-zero-h7-oem/nuttx-config/include/board.h b/boards/mro/ctrl-zero-h7-oem/nuttx-config/include/board.h
index 371db6d163..2e7a6a031f 100644
--- a/boards/mro/ctrl-zero-h7-oem/nuttx-config/include/board.h
+++ b/boards/mro/ctrl-zero-h7-oem/nuttx-config/include/board.h
@@ -186,7 +186,8 @@
 /* Kernel Clock Configuration
  *  Note: look at Table 54 in ST Manual
  */
-#define STM32_RCC_D2CCIP2R_I2C123SRC RCC_D2CCIP2R_I2C1234SEL_HSI  /* I2C1234 clock source */
+#define STM32_RCC_D2CCIP2R_I2C123SRC RCC_D2CCIP2R_I2C123SEL_HSI  /* I2C123 clock source */
+#define STM32_RCC_D3CCIPR_I2C4SRC	   RCC_D3CCIPR_I2C4SEL_HSI	 /* I2C4 clock source */
 #define STM32_RCC_D2CCIP1R_SPI123SRC RCC_D2CCIP1R_SPI123SEL_PLL2 /* SPI123 clock source */
 #define STM32_RCC_D2CCIP1R_SPI45SRC  RCC_D2CCIP1R_SPI45SEL_PLL2  /* SPI45 clock source */
 #define STM32_RCC_D3CCIPR_SPI6SRC    RCC_D3CCIPR_SPI6SEL_PLL2    /* SPI6 clock source */