diff --git a/os/hal/platforms/STM32F4xx/stm32_rcc.h b/os/hal/platforms/STM32F4xx/stm32_rcc.h
index b429d7bcd..c12988495 100644
--- a/os/hal/platforms/STM32F4xx/stm32_rcc.h
+++ b/os/hal/platforms/STM32F4xx/stm32_rcc.h
@@ -994,7 +994,7 @@
 #define rccResetTIM8() rccResetAPB2(RCC_APB2RSTR_TIM8RST)
 
 /**
- * @brief   Enables the TIM89peripheral clock.
+ * @brief   Enables the TIM9peripheral clock.
  * @note    The @p lp parameter is ignored in this family.
  *
  * @param[in] lp        low power enable flag