diff --git a/native/libwinbridge/bridge.h b/native/libwinbridge/bridge.h
index f8084ad..304f10b 100644
--- a/native/libwinbridge/bridge.h
+++ b/native/libwinbridge/bridge.h
@@ -42,7 +42,7 @@ extern "C" int32_t initialize(void * self, wchar_t * ico_path, wchar_t * bmp_pat
  * Called when a new keypress is made, the first argument is an int array,
  * while the second is the size of the array.
  */
-typedef void (*KeypressCallback)(void * self, uint16_t *buffer, int32_t len, int32_t event_type, int32_t key_code, int32_t is_key_down, int32_t variant);
+typedef void (*KeypressCallback)(void * self, uint16_t *buffer, int32_t len, int32_t event_type, int32_t key_code, int32_t variant, int32_t is_key_down);
 extern KeypressCallback keypress_callback;
 
 /*