diff --git a/mods/ENTITIES/mcl_mobs/init.lua b/mods/ENTITIES/mcl_mobs/init.lua
index 834ae426a..083006fae 100644
--- a/mods/ENTITIES/mcl_mobs/init.lua
+++ b/mods/ENTITIES/mcl_mobs/init.lua
@@ -352,6 +352,7 @@ function mcl_mobs.register_conversion(old_name, new_name)
 			for i = 1,#STRIP_FIELDS do
 				unpacked_staticdata[STRIP_FIELDS[i]] = nil
 			end
+			minetest.log("action", "Converting "..old_name.." to "..new_name.." staticdata="..dump(unpacked_staticdata))
 			staticdata = minetest.serialize(unpacked_staticdata)
 
 			local old_object = self.object