diff --git a/apps/drivers/stm32/drv_hrt.c b/apps/drivers/stm32/drv_hrt.c
index bb67d5e6d2..cec0c49ffd 100644
--- a/apps/drivers/stm32/drv_hrt.c
+++ b/apps/drivers/stm32/drv_hrt.c
@@ -125,7 +125,7 @@
 # define HRT_TIMER_VECTOR	STM32_IRQ_TIM8CC
 # define HRT_TIMER_CLOCK	STM32_APB2_TIM8_CLKIN
 # if CONFIG_STM32_TIM8
-#  error must not set CONFIG_STM32_TIM8=y and HRT_TIMER=6
+#  error must not set CONFIG_STM32_TIM8=y and HRT_TIMER=8
 # endif
 #elif HRT_TIMER == 9
 # define HRT_TIMER_BASE		STM32_TIM9_BASE