diff --git a/arch/arm/src/stm32/stm32_adc.c b/arch/arm/src/stm32/stm32_adc.c
index ec895bbe53..ab876966d9 100644
--- a/arch/arm/src/stm32/stm32_adc.c
+++ b/arch/arm/src/stm32/stm32_adc.c
@@ -772,7 +772,7 @@ static int adc_timinit(FAR struct stm32_dev_s *priv)
 #if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
   else
     {
-      ccer &= ~(GTIM_CCER_CC1NP | GTIM_CCER_CC2NP | GTIM_CCER_CC3NP | GTIM_CCER_CC4NP);
+      ccer &= ~(GTIM_CCER_CC1NP | GTIM_CCER_CC2NP | GTIM_CCER_CC3NP);
     }
 #endif
 
diff --git a/arch/arm/src/stm32/stm32_pwm.c b/arch/arm/src/stm32/stm32_pwm.c
index c1279435e3..f9d36af7a8 100644
--- a/arch/arm/src/stm32/stm32_pwm.c
+++ b/arch/arm/src/stm32/stm32_pwm.c
@@ -896,7 +896,7 @@ static int pwm_timer(FAR struct stm32_pwmtimer_s *priv,
 #endif
 #if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
     {
-      ccer &= ~(GTIM_CCER_CC1NP | GTIM_CCER_CC2NP | GTIM_CCER_CC3NP | GTIM_CCER_CC4NP);
+      ccer &= ~(GTIM_CCER_CC1NP | GTIM_CCER_CC2NP | GTIM_CCER_CC3NP);
     }
 #endif