diff --git a/mods/CORE/walkover/init.lua b/mods/CORE/walkover/init.lua
index f5507efbf..220157c8b 100644
--- a/mods/CORE/walkover/init.lua
+++ b/mods/CORE/walkover/init.lua
@@ -22,7 +22,7 @@ minetest.register_on_mods_loaded(function()
 		end
 	end
 	for _,func in ipairs(walkover.registered_globals) do --cache registered globals
-		table.insert(registered_globals, value)
+		table.insert(registered_globals, func)
 	end
 end)
 
diff --git a/mods/ENTITIES/mcl_mobs/api.lua b/mods/ENTITIES/mcl_mobs/api.lua
index 7d6d15dcb..93b7bc146 100644
--- a/mods/ENTITIES/mcl_mobs/api.lua
+++ b/mods/ENTITIES/mcl_mobs/api.lua
@@ -1047,7 +1047,10 @@ local do_env_damage = function(self)
 		end
 	end
 
-	local sunlight = minetest.get_natural_light(pos, self.time_of_day)
+	-- Use get_node_light for Minetest version 5.3 where get_natural_light
+	-- does not exist yet.
+	local get_light = minetest.get_natural_light or minetest.get_node_light
+	local sunlight = get_light(pos, self.time_of_day)
 
 	-- bright light harms mob
 	if self.light_damage ~= 0 and (sunlight or 0) > 12 then