diff --git a/init.lua b/init.lua
index d0690de..227ce66 100644
--- a/init.lua
+++ b/init.lua
@@ -72,8 +72,8 @@ end
 
 minetest.register_tool("returnmirror:mirror_inactive", {
 	description = S("Mirror of Returning"),
-	x_doc_items_longdesc = longdesc,
-	x_doc_items_usagehelp = usagehelp,
+	_doc_items_longdesc = longdesc,
+	_doc_items_usagehelp = usagehelp,
 	inventory_image = "returnmirror_mirror_inactive.png",
 	wield_image = "returnmirror_mirror_inactive.png",
 	tool_capabilities = {},
@@ -87,7 +87,7 @@ minetest.register_tool("returnmirror:mirror_inactive", {
 
 minetest.register_tool("returnmirror:mirror_active", {
 	description = S("Mirror of Returning"),
-	x_doc_items_create_entry = false,
+	_doc_items_create_entry = false,
 	stack_max = 1,
 	inventory_image = "returnmirror_mirror_active.png",
 	wield_image = "returnmirror_mirror_active.png",