diff --git a/src/js/DefaultRules.js b/src/js/DefaultRules.js
index e4c8ce1d38063260571f8ef274b2b19fdbf67d99..112ac6a04cfba9af529a036b717d7098bf5413c3 100644
--- a/src/js/DefaultRules.js
+++ b/src/js/DefaultRules.js
@@ -1759,10 +1759,10 @@ globalThis.DefaultRules = function(slave) {
 		function dietPills(slave) {
 			if (slave.drugs === "appetite suppressors" && slave.diet !== "restricted") {
 				slave.drugs = "no drugs";
-				message(`${slave.slaveName} no longer needs to lose weight, so ${he}'s no longer being given appetite suppressors.`, [sourceRecord.diet, sourceRecord.weight.max, sourceRecord.weight.min]);
+				message(`${slave.slaveName} no longer needs to lose weight, so ${he}'s no longer being given appetite suppressors.`, [sourceRecord.diet, sourceRecord.weight?.max, sourceRecord.weight?.min]);
 			} else if (slave.diet === "restricted" && V.arcologies[0].FSSlimnessEnthusiastResearch === 1 && slave.drugs === "no drugs") {
 				slave.drugs = "appetite suppressors";
-				message(`${slave.slaveName} needs to lose weight, so ${he} will be given weight loss pills.`, [sourceRecord.diet, sourceRecord.weight.max, sourceRecord.weight.min]);
+				message(`${slave.slaveName} needs to lose weight, so ${he} will be given weight loss pills.`, [sourceRecord.diet, sourceRecord.weight?.max, sourceRecord.weight?.min]);
 			}
 		}
 	}