diff --git a/include/linux/auto_fs4.h b/include/linux/auto_fs4.h
index 9343c89d843c..d998ddcf7288 100644
--- a/include/linux/auto_fs4.h
+++ b/include/linux/auto_fs4.h
@@ -23,7 +23,7 @@
 #define AUTOFS_MIN_PROTO_VERSION	3
 #define AUTOFS_MAX_PROTO_VERSION	4
 
-#define AUTOFS_PROTO_SUBVERSION		7
+#define AUTOFS_PROTO_SUBVERSION		10
 
 /* Mask for expire behaviour */
 #define AUTOFS_EXP_IMMEDIATE		1