diff --git a/src/js/generateGenetics.tw b/src/js/generateGenetics.tw
index ee94a35690d8a06bbabb94a235cce81103c34646..ee3fea4b33e129eff0037dc1ae7fe013025e1d3b 100644
--- a/src/js/generateGenetics.tw
+++ b/src/js/generateGenetics.tw
@@ -36,13 +36,13 @@ window.generateGenetics = (function() {
 			if (father === undefined) {
 				if (V.incubator > 0) {
 					father = V.tanks.find(function(s) { return s.ID == actor2.ID; });
-					activeFather = 0;
+					activeFather = 0; // activeFather = father?
 				}
 			}
 			if (father === undefined) {
 				if (V.nursery > 0) {
 					father = V.cribs.find(function(s) { return s.ID == actor2.ID; });
-					activeFather = 0;
+					activeFather = 0; // activeFather = father?
 				}
 			}
 			if (father === undefined) {