diff --git a/src/data/backwardsCompatibility/backwardsCompatibility.js b/src/data/backwardsCompatibility/backwardsCompatibility.js
index ea04769b0e234a035ec492b772b972e6194c20e2..77f4fcf5b46442f055bd767ced78585b3f944ec4 100644
--- a/src/data/backwardsCompatibility/backwardsCompatibility.js
+++ b/src/data/backwardsCompatibility/backwardsCompatibility.js
@@ -2002,7 +2002,7 @@ App.Update.cleanUp = function(node) {
 };
 
 App.Update.sectorsToBuilding = function() {
-	V.building = new App.Arcology.Building([]);
+	V.building = new App.Arcology.Building(V.terrain, []);
 	const B = V.building;
 	const S = V.sectors;