diff --git a/src/js/assayJS.js b/src/js/assayJS.js
index 485fbb885692291db5aac48d00a763dfce30bc9d..a371f2a4dde4a8823e6bc47d797cf41affef48c1 100644
--- a/src/js/assayJS.js
+++ b/src/js/assayJS.js
@@ -1610,7 +1610,7 @@ globalThis.ageSlaveWeeks = function(slave, weeks = 1) {
 globalThis.ageSlave = function(slave, forceDevelopment = false) {
 	slave.physicalAge++;
 	slave.actualAge++;
-	if (slave.geneMods.NCS === 1 || (slave.geneticQuirks.neoteny === 2 && slave.geneticQuirks.progeria !== 2)) {
+	if (slave.geneMods.NCS === 1 || (slave.geneticQuirks.neoteny >= 2 && slave.geneticQuirks.progeria !== 2)) {
 		/* Induced NCS completely takes over visual aging. Additionally, because of the neoteny aspects of NCS, ovaries don't age quite as fast. */
 		/* Unsurprisingly, actual neoteny has the same effect as long as progeria isn't in play. */
 		slave.ovaryAge += either(0.5, 0.6, 0.7, 0.7, 0.8, 0.9, 1.0);