diff --git a/include/linux/kref.h b/include/linux/kref.h
index abc0120b09b772ff90fe539016295a00dfb08107..9c07dcebded747493041c8e6a5c18d68bc43fabf 100644
--- a/include/linux/kref.h
+++ b/include/linux/kref.h
@@ -17,6 +17,7 @@
 
 #include <linux/bug.h>
 #include <linux/atomic.h>
+#include <linux/kernel.h>
 
 struct kref {
 	atomic_t refcount;