diff --git a/arch/arm/src/stm32l4/stm32l4x3xx_rcc.c b/arch/arm/src/stm32l4/stm32l4x3xx_rcc.c
index 2950e7ab272..b9ae1891eb9 100644
--- a/arch/arm/src/stm32l4/stm32l4x3xx_rcc.c
+++ b/arch/arm/src/stm32l4/stm32l4x3xx_rcc.c
@@ -698,9 +698,9 @@ static void stm32l4_stdclockconfig(void)
 #if 0
       /* Ensure Power control is enabled before modifying it. */
 
-      regval  = getreg32(STM32L4_RCC_APB1ENR);
-      regval |= RCC_APB1ENR_PWREN;
-      putreg32(regval, STM32L4_RCC_APB1ENR);
+      regval  = getreg32(STM32L4_RCC_APB1ENR1);
+      regval |= RCC_APB1ENR1_PWREN;
+      putreg32(regval, STM32L4_RCC_APB1ENR1);
 
       /* Select regulator voltage output Scale 1 mode to support system
        * frequencies up to 168 MHz.
diff --git a/arch/arm/src/stm32l4/stm32l4x5xx_rcc.c b/arch/arm/src/stm32l4/stm32l4x5xx_rcc.c
index 4881f2b1dff..3317109edb4 100644
--- a/arch/arm/src/stm32l4/stm32l4x5xx_rcc.c
+++ b/arch/arm/src/stm32l4/stm32l4x5xx_rcc.c
@@ -688,9 +688,9 @@ static void stm32l4_stdclockconfig(void)
 #if 0
       /* Ensure Power control is enabled before modifying it. */
 
-      regval  = getreg32(STM32L4_RCC_APB1ENR);
-      regval |= RCC_APB1ENR_PWREN;
-      putreg32(regval, STM32L4_RCC_APB1ENR);
+      regval  = getreg32(STM32L4_RCC_APB1ENR1);
+      regval |= RCC_APB1ENR1_PWREN;
+      putreg32(regval, STM32L4_RCC_APB1ENR1);
 
       /* Select regulator voltage output Scale 1 mode to support system
        * frequencies up to 168 MHz.