diff --git a/arch/arm/src/stm32l4/stm32l4_pwm.c b/arch/arm/src/stm32l4/stm32l4_pwm.c
index e3c78b8c164..31a83129497 100644
--- a/arch/arm/src/stm32l4/stm32l4_pwm.c
+++ b/arch/arm/src/stm32l4/stm32l4_pwm.c
@@ -1126,7 +1126,7 @@ static struct stm32l4_pwmchan_s g_pwm15channels[] =
   {
     .channel = 2,
     .mode    = CONFIG_STM32L4_TIM15_CH2MODE,
-#ifdef CONFIG_STM32L4_TIM12_CH2OUT
+#ifdef CONFIG_STM32L4_TIM15_CH2OUT
     .out1    =
     {
       .in_use  = 1,