diff --git a/src/led.h b/src/led.h
index d270385..4878b64 100644
--- a/src/led.h
+++ b/src/led.h
@@ -5,6 +5,7 @@
 #ifndef LED_H
 #define LED_H
 
+#include "gd32e23x_it.h"
 #include "gd32e23x.h"
 #include "board_config.h"