diff --git a/src/js/SlaveState.js b/src/js/SlaveState.js
index 26b176d0ffd0914d71cabee59546dadb49d7a31b..262183b82c633fb05ec1c6fc02a4a2af163c213b 100644
--- a/src/js/SlaveState.js
+++ b/src/js/SlaveState.js
@@ -605,7 +605,9 @@ App.Entity.EyeState = class EyeState {
 App.Entity.GeneticState = class GeneticState {
 	constructor() {
 		// TODO: move origHColor, origSkin, origRace here, as hColor, skin, race?
-		this.height = 170; // new - almost done.  need to rewrite physical development for both player and slave.
+		/** adult, natural height; expected height when full-grown/no drugs/no surgery
+		 * @type {number} */
+		this.height = 170;
 		// this.boobs = 500; // TODO: for pregmodder
 		this.artSeed = jsRandom(0, 10 ** 14);
 	}