diff --git a/boards/arm/stm32l5/nucleo-l552ze/include/board.h b/boards/arm/stm32l5/nucleo-l552ze/include/board.h
index 84a11ab26e..31e0a23e7c 100644
--- a/boards/arm/stm32l5/nucleo-l552ze/include/board.h
+++ b/boards/arm/stm32l5/nucleo-l552ze/include/board.h
@@ -120,7 +120,6 @@
 
 #define STM32L5_RCC_CFGR_HPRE     RCC_CFGR_HPRE_SYSCLK      /* HCLK  = SYSCLK / 1 */
 #define STM32L5_HCLK_FREQUENCY    STM32L5_SYSCLK_FREQUENCY
-#define STM32L5_BOARD_HCLK        STM32L5_HCLK_FREQUENCY    /* Same as above, to satisfy compiler */
 
 /* Configure the APB1 prescaler */
 
diff --git a/boards/arm/stm32l5/stm32l562e-dk/include/board.h b/boards/arm/stm32l5/stm32l562e-dk/include/board.h
index a6c3003669..20e3c369bb 100644
--- a/boards/arm/stm32l5/stm32l562e-dk/include/board.h
+++ b/boards/arm/stm32l5/stm32l562e-dk/include/board.h
@@ -72,7 +72,6 @@
 
 #define STM32L5_SYSCLK_FREQUENCY  110000000ul
 #define STM32L5_HCLK_FREQUENCY    STM32L5_SYSCLK_FREQUENCY
-#define STM32L5_BOARD_HCLK        STM32L5_HCLK_FREQUENCY
 #define STM32L5_PCLK1_FREQUENCY   STM32L5_HCLK_FREQUENCY
 #define STM32L5_PCLK2_FREQUENCY   (STM32L5_HCLK_FREQUENCY / 1)