diff --git a/include/linux/node.h b/include/linux/node.h
index 6e0a697..254dc3d 100644
--- a/include/linux/node.h
+++ b/include/linux/node.h
@@ -27,6 +27,7 @@
 };
 
 extern int register_node(struct node *, int, struct node *);
+extern void unregister_node(struct node *node);
 
 #define to_node(sys_device) container_of(sys_device, struct node, sysdev)