diff --git a/data/campaigns/Descent_Into_Darkness/scenarios/08_A_Small_Favor2.cfg b/data/campaigns/Descent_Into_Darkness/scenarios/08_A_Small_Favor2.cfg
index 3d6eca79f034..070f49b61bb5 100644
--- a/data/campaigns/Descent_Into_Darkness/scenarios/08_A_Small_Favor2.cfg
+++ b/data/campaigns/Descent_Into_Darkness/scenarios/08_A_Small_Favor2.cfg
@@ -334,7 +334,7 @@
 
         # this code is a handler in case this scenario is reached via debug or an old save which did not include this variable
         [lua]
-            code = << if wesnoth.get_variable("S7_turns")==nil then wesnoth.set_variable("S7_turns",5) end >>
+            code = << if wml.variables["S7_turns"] == nil then wml.variables["S7_turns"] = 5 end >>
         [/lua]
 
         [set_variable]
diff --git a/data/campaigns/Legend_of_Wesmere/lua/wml_tags.lua b/data/campaigns/Legend_of_Wesmere/lua/wml_tags.lua
index dd9d14185619..30fbfbfeb7ca 100644
--- a/data/campaigns/Legend_of_Wesmere/lua/wml_tags.lua
+++ b/data/campaigns/Legend_of_Wesmere/lua/wml_tags.lua
@@ -59,7 +59,7 @@ function wesnoth.wml_actions.replace_map_section(cfg)
 end
 
 function wesnoth.wml_actions.unstore_left_behind_units(cfg)
-	if wesnoth.get_variable("l3_store_kalenz") ~= nil then
+	if wml.variables["l3_store_kalenz"] ~= nil then
 		l3_store_kalenz = helper.get_variable_array("l3_store_kalenz")
 		for i,_ in ipairs(l3_store_kalenz) do
 			var_name = "l3_store_kalenz[" .. tostring(i-1) .. "]"
@@ -69,9 +69,9 @@ function wesnoth.wml_actions.unstore_left_behind_units(cfg)
 				y = "recall"
 			}
 		end
-		wesnoth.set_variable("l3_store_kalenz",nil)
+		wml.variables["l3_store_kalenz"] = nil
 	end
-	if wesnoth.get_variable("l3_store_landar") ~= nil then
+	if wml.variables["l3_store_landar"] ~= nil then
 		l3_store_landar = helper.get_variable_array("l3_store_landar")
 		for i,_ in ipairs(l3_store_landar) do
 			var_name = "l3_store_landar[" .. tostring(i-1) .. "]"
@@ -81,7 +81,7 @@ function wesnoth.wml_actions.unstore_left_behind_units(cfg)
 				y = "recall"
 			}
 		end
-		wesnoth.set_variable("l3_store_landar",nil)
+		wml.variables["l3_store_landar"] = nil
 	end
 end
 
diff --git a/data/campaigns/Secrets_of_the_Ancients/utils/zombie_recruit_dialog.lua b/data/campaigns/Secrets_of_the_Ancients/utils/zombie_recruit_dialog.lua
index 03e61d5f051c..10873bc0a554 100644
--- a/data/campaigns/Secrets_of_the_Ancients/utils/zombie_recruit_dialog.lua
+++ b/data/campaigns/Secrets_of_the_Ancients/utils/zombie_recruit_dialog.lua
@@ -137,7 +137,7 @@ while zombies[zArrayIndex] and zExists == false do
     zArrayIndex = zArrayIndex + 1
 end
 
-wesnoth.set_variable( "recruitedZombieType", "cancel" ) -- default value
+wml.variables["recruitedZombieType"] = "cancel" -- default value
 
 if zExists==false then
     wesnoth.show_message_box("", _ "There are no corpses available.", "")
@@ -146,7 +146,7 @@ else
     if  returned ~= -2 and sides[1].gold  < recruitCost then
         wesnoth.show_message_box("", _ "You do not have enough gold to recruit that unit", "")
     elseif returned ~= -2 and (sides[1].gold ) >= recruitCost then
-        wesnoth.set_variable( "recruitedZombieType", recruitedType )
-        wesnoth.set_variable( "recruitedZombieCost", recruitCost )
+        wml.variables["recruitedZombieType"] = recruitedType
+        wml.variables["recruitedZombieCost"] = recruitCost
     end
 end
diff --git a/data/campaigns/Wings_of_Victory/scenarios/03_The_Contention.cfg b/data/campaigns/Wings_of_Victory/scenarios/03_The_Contention.cfg
index f8fcabc720cd..3aeca0abd772 100644
--- a/data/campaigns/Wings_of_Victory/scenarios/03_The_Contention.cfg
+++ b/data/campaigns/Wings_of_Victory/scenarios/03_The_Contention.cfg
@@ -274,7 +274,7 @@
         first_time_only=no
         # Determine which side has the advantage
         [lua]
-            code = << wesnoth.set_variable( "result", wesnoth.require("campaigns/Wings_of_Victory/lua/lua.lua").turns_over_advantage() ) >>
+            code = << wesnoth.wml.variables["result"] = wesnoth.require("campaigns/Wings_of_Victory/lua/lua.lua").turns_over_advantage() >>
         [/lua]
         [switch]
             variable=result