diff --git a/include/net/irda/timer.h b/include/net/irda/timer.h
index 2c5d886..cb61568 100644
--- a/include/net/irda/timer.h
+++ b/include/net/irda/timer.h
@@ -28,6 +28,7 @@
 #define TIMER_H
 
 #include <linux/timer.h>
+#include <linux/jiffies.h>
 
 #include <asm/param.h>  /* for HZ */