diff --git a/README.md b/README.md
index eea951a..b8a2051 100644
--- a/README.md
+++ b/README.md
@@ -67,6 +67,10 @@ Dependencies: Minetest Game or MineClone.
 ## Changelog
 <details><summary>Look at this fancy expanding changelog</summary>
 
+## v6.4
+* Yes, I know, v6.3 only came out about 9 hours ago.
+* Mineclonia apparently changed something minor, and it was causing a crash. I fixed it.
+
 ### v6.3
 * Added Technic items to MCL base energy values (reported by @programmerjake)
 * Fixed a bug where iron nuggets were worth the same amount as a random piece of chain armor (reported by @programmerjake)
diff --git a/exchangeclone/init.lua b/exchangeclone/init.lua
index 4699824..bbc4bee 100644
--- a/exchangeclone/init.lua
+++ b/exchangeclone/init.lua
@@ -112,7 +112,7 @@ dofile(modpath.."/craftitems.lua")
 if exchangeclone.mcl or minetest.get_modpath("3d_armor") then
 	dofile(modpath.."/armor.lua")
 end
-if exchangeclone.mcl then
+if exchangeclone.mcl2 then
 	mcl_item_id.set_mod_namespace("exchangeclone")
 	dofile(modpath.."/shears.lua")
 	dofile(modpath.."/tool_upgrades.lua")