diff --git a/src/events/intro/initNationalities.js b/src/events/intro/initNationalities.js
index eead7190f1cbbffe26edb3123031233f88636892..dfa24c6782e16d1652d00ea5bc33574365c38fa4 100644
--- a/src/events/intro/initNationalities.js
+++ b/src/events/intro/initNationalities.js
@@ -165,6 +165,7 @@ App.Intro.initNationalities = function() {
 	}
 
 	function initArcologies() {
+		/** @type {Array<FC.ArcologyDirection>} */
 		const seed = ["east", "north", "northeast", "northwest", "south", "southeast", "southwest", "west"];
 		const govtypes = ["a committee", "a corporation", "an individual", "an oligarchy", "direct democracy", "elected officials"];