diff --git a/os/hal/platforms/STM32F4xx/hal_lld.h b/os/hal/platforms/STM32F4xx/hal_lld.h
index ad2a28900..0f19f07f2 100644
--- a/os/hal/platforms/STM32F4xx/hal_lld.h
+++ b/os/hal/platforms/STM32F4xx/hal_lld.h
@@ -107,7 +107,7 @@
 #define STM32_PLLOUT_MAX        168000000
 
 /**
- * @brief   Maximum PLL output clock frequency.
+ * @brief   Minimum PLL output clock frequency.
  */
 #define STM32_PLLOUT_MIN        24000000