diff --git a/include/linux/auto_fs4.h b/include/linux/auto_fs4.h
index 55fa478bd639..8b49ac48a5b7 100644
--- a/include/linux/auto_fs4.h
+++ b/include/linux/auto_fs4.h
@@ -12,6 +12,7 @@
 #define _LINUX_AUTO_FS4_H
 
 /* Include common v3 definitions */
+#include <linux/types.h>
 #include <linux/auto_fs.h>
 
 /* autofs v4 definitions */