diff --git a/drivers/staging/hv/hv_mouse.c b/drivers/staging/hv/hv_mouse.c
index 50147f84741cbef6f23a3828711a2c2a8116a073..9c6d4d24f88964ee3a80d02c2ff1f50e3b4c487a 100644
--- a/drivers/staging/hv/hv_mouse.c
+++ b/drivers/staging/hv/hv_mouse.c
@@ -23,6 +23,7 @@
 #include <linux/hiddev.h>
 #include <linux/pci.h>
 #include <linux/dmi.h>
+#include <linux/delay.h>
 
 #include "hv_api.h"
 #include "logging.h"