diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 8c4292f..4117604 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -651,7 +651,7 @@
 	/* only consider parents below dentrys in the root */
 	if (IS_ROOT(parent->d_parent))
 		return;
-	d_child = &dentry->d_u.d_child;
+	d_child = &dentry->d_child;
 	/* Set parent managed if it's becoming empty */
 	if (d_child->next == &parent->d_subdirs &&
 	    d_child->prev == &parent->d_subdirs)