diff --git a/tmk_core/common/avr/suspend.c b/tmk_core/common/avr/suspend.c
index 0c81e8361..1c7618ff5 100644
--- a/tmk_core/common/avr/suspend.c
+++ b/tmk_core/common/avr/suspend.c
@@ -9,6 +9,7 @@
 #include "suspend.h"
 #include "timer.h"
 #include "led.h"
+#include "host.h"
 
 #ifdef PROTOCOL_LUFA
 	#include "lufa.h"