diff --git a/src/motion_plus.c b/src/motion_plus.c
index 53508aa..c225a6c 100644
--- a/src/motion_plus.c
+++ b/src/motion_plus.c
@@ -32,6 +32,7 @@
 #include "wiiuse_internal.h"
 #include "dynamics.h"
 #include "events.h"
+#include "ir.h"
 
 #include <stdlib.h>
 #include <math.h>