diff --git a/src/init/storyInit.tw b/src/init/storyInit.tw
index 233a691ce57e0b46c2d7921bfc870f5106ba06ac..984376b26a6c7116380a51bd9b9e448f22fbc962 100644
--- a/src/init/storyInit.tw
+++ b/src/init/storyInit.tw
@@ -194,10 +194,8 @@ You should have received a copy of the GNU General Public License along with thi
 		<<set $slaves[_i].lastWeeksRepExpenses = 0>>
 		<<set $slaves[_i].lastWeeksRepIncome = 0>>
 	<</for>>
-	<<set $slavesOriginal = []>> /* not used by pregmod */
 <<else>>
 	<<set $slaves = []>>
-	<<set $slavesOriginal = []>> /* not used by pregmod */
 	<<set $genePool = []>>
 	<<set $slaveIndices = slaves2indices()>>
 		<<set $missingTable = {}>>
diff --git a/src/js/backwardsCompatibility.js b/src/js/backwardsCompatibility.js
index dcb66da6d34eab7e4110baaa1fe985d2f5f21ea6..7b5a37ebcf5b921c4972eba284b525fba82a531d 100644
--- a/src/js/backwardsCompatibility.js
+++ b/src/js/backwardsCompatibility.js
@@ -1108,7 +1108,7 @@ window.backwardsCompatibility = (function() {
 		if (typeof V.tanks === "undefined") {
 			V.tanks = [];
 		}
-		/% Nursery Subsection %/;
+		// Nursery Subsection
 		if (typeof V.nursery === "undefined") {
 			V.nursery = 0;
 		}
@@ -2399,7 +2399,9 @@ window.backwardsCompatibility = (function() {
 				V.building = App.Arcology.defaultBuilding();
 			}
 		}
-
+		if (typeof V.slavesOriginal !== "undefined") {
+			delete V.slavesOriginal;
+		}
 
 		r += `<<silently>>`;
 		r += `<<include "MOD_Edit FS Cheat Datatype Cleanup">>`;
@@ -4028,8 +4030,4 @@ window.backwardsCompatibility = (function() {
 		/* reset NaNArray after BC is run */
 		V.NaNArray = findNaN();
 	}
-
-
-	V.slavesOriginal = [];
-	/* not used by pregmod */
 })();
diff --git a/src/uncategorized/randomNonindividualEvent.tw b/src/uncategorized/randomNonindividualEvent.tw
index dd4804cf31744ff66b8f7ca70b67990a8c78796f..a56d94d4926c3e0ad1def06a673e587450aea970 100644
--- a/src/uncategorized/randomNonindividualEvent.tw
+++ b/src/uncategorized/randomNonindividualEvent.tw
@@ -778,7 +778,7 @@
 			<<set $events.push("RE relative recruiter")>>
 			<<set $recruiterSlave = $recruiterSlave.ID>>
 			<<break>>
-		<<else>> /* no matching slave object in the slavesOriginal array -- bug? */
+		<<else>> /* no matching slave object in the array -- bug? */
 			<<set $i = $slaveIndices[$recruiterSlave.ID]>>
 			<<set $slaves[$i].canRecruit = 0>>
 			<<set $recruiterSlave = -1>>