diff --git a/_board/seeeduino_wio_terminal.md b/_board/seeeduino_wio_terminal.md
index da1e073b..786f6259 100644
--- a/_board/seeeduino_wio_terminal.md
+++ b/_board/seeeduino_wio_terminal.md
@@ -26,6 +26,7 @@ Instead of being a single embedded functional module, **Wio Terminal** is more o
  * **4 MB** External Flash, **192 KB** RAM
  * Comprehensive Protocol Support
  * SPI, I2C, I2S, ADC, DAC, PWM, UART(Serial)
+ * Built-in real-time clock RTC
 
 **Reliable Wireless Connectivity**
  * Powered by **Realtek RTL8720DN**