diff --git a/drivers/staging/hv/hv_mouse.c b/drivers/staging/hv/hv_mouse.c
index cbe568616850750c4d4948ee980266f0c46d123b..05b86cc09dbab1762ce49f34d859ba8aaf9ecd86 100644
--- a/drivers/staging/hv/hv_mouse.c
+++ b/drivers/staging/hv/hv_mouse.c
@@ -14,6 +14,7 @@
  */
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/workqueue.h>
 #include <linux/sched.h>