diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 232e03d4780d..5b570b6efa28 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -737,7 +737,7 @@ MODULE_ALIAS_MISCDEV(AUTOFS_MINOR);
 MODULE_ALIAS("devname:autofs");
 
 /* Register/deregister misc character device */
-int autofs_dev_ioctl_init(void)
+int __init autofs_dev_ioctl_init(void)
 {
 	int r;