diff --git a/lib-gd32/include/board/gd32f303rc.h b/lib-gd32/include/board/gd32f303rc.h
index 653d80a..067e965 100644
--- a/lib-gd32/include/board/gd32f303rc.h
+++ b/lib-gd32/include/board/gd32f303rc.h
@@ -174,7 +174,7 @@ static constexpr uint32_t PORT_A_TX = 0;
  * LCD
  */
 
-#define DISPLAYTIMEOUT_GPIO		GD32_PORT_TO_GPIO(GD32_GPIO_PORTC, 13)	// KEY2
+#define DISPLAYTIMEOUT_GPIO		GD32_PORT_TO_GPIO(GD32_GPIO_PORTB, 14)	// KEY2
 
 /**
  * Pixel DMX