diff --git a/src/W800_SDK_v1.00.10/app/app_config.h b/src/W800_SDK_v1.00.10/app/app_config.h
index 2cde019..831a2fc 100644
--- a/src/W800_SDK_v1.00.10/app/app_config.h
+++ b/src/W800_SDK_v1.00.10/app/app_config.h
@@ -127,7 +127,8 @@
 #endif
 
 /**
- * @brief Define if the watchdog timer should be enabled or not 
+ * @brief Define if the watchdog timer should be enabled or not
+ *        The watchdog timer will reset the MCU in case of a freeze.
  * 
  */
 #define WATCHDOG_TIMER_ENABLE (1)