diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c
index 32666d0d956a23a3ed034ac9788c9fc043ffc1ba..0f2cb4fd7c6980448e01770476e262d6ea708d70 100644
--- a/drivers/lguest/hypercalls.c
+++ b/drivers/lguest/hypercalls.c
@@ -23,6 +23,7 @@
 #include <linux/uaccess.h>
 #include <linux/syscalls.h>
 #include <linux/mm.h>
+#include <linux/ktime.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include "lg.h"
diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h
index b75ce3b17afe167ab1b2a1c13a8ccfeab10acb8f..2337e1a06f023ffd226c3ad9748ca3104c41d9e4 100644
--- a/drivers/lguest/lg.h
+++ b/drivers/lguest/lg.h
@@ -8,6 +8,7 @@
 #include <linux/lguest.h>
 #include <linux/lguest_launcher.h>
 #include <linux/wait.h>
+#include <linux/hrtimer.h>
 #include <linux/err.h>
 #include <asm/semaphore.h>
 
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index a87fca678c6b9a1160ffbd6e287ff30d3be772ed..85d42d3d01a9a9bbeb739ce422271848cd4be3ff 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -6,6 +6,7 @@
 #include <linux/uaccess.h>
 #include <linux/miscdevice.h>
 #include <linux/fs.h>
+#include <linux/sched.h>
 #include "lg.h"
 
 /*L:055 When something happens, the Waker process needs a way to stop the