diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 7fc2a13..4c289ab 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/string.h>
 #include <linux/mutex.h>
+#include <linux/sysfs.h>
 #include "base.h"
 #include "power/power.h"
 
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 921b941..c7b0925 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -26,6 +26,7 @@
 #include <linux/async.h>
 #include <linux/pm_runtime.h>
 #include <linux/netdevice.h>
+#include <linux/sysfs.h>
 
 #include "base.h"
 #include "power/power.h"
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index c7efccb..9e29943 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -15,6 +15,7 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/sysfs.h>
 #include "base.h"
 
 static struct device *next_device(struct klist_iter *i)