diff --git a/os/hal/ports/STM32/STM32F7xx/hal_lld.h b/os/hal/ports/STM32/STM32F7xx/hal_lld.h
index 812000adf..66142d435 100644
--- a/os/hal/ports/STM32/STM32F7xx/hal_lld.h
+++ b/os/hal/ports/STM32/STM32F7xx/hal_lld.h
@@ -285,6 +285,7 @@
 #define STM32_MCO2SEL_PLLI2S    (1 << 30)   /**< PLLI2S clock on MCO2 pin.  */
 #define STM32_MCO2SEL_HSE       (2 << 30)   /**< HSE clock on MCO2 pin.     */
 #define STM32_MCO2SEL_PLL       (3 << 30)   /**< PLL clock on MCO2 pin.     */
+/** @} */
 
 /**
  * @name    RCC_PLLI2SCFGR register bits definitions