diff --git a/src/data/backwardsCompatibility/updateSlaveObject.js b/src/data/backwardsCompatibility/updateSlaveObject.js
index eee8683b342704e646090636921796c37cf7a5b8..ea52d5d3448a24f5842b3874e7cb9a6a0c597f89 100644
--- a/src/data/backwardsCompatibility/updateSlaveObject.js
+++ b/src/data/backwardsCompatibility/updateSlaveObject.js
@@ -62,7 +62,7 @@ App.Update.Slave = function(slave, genepool = false) {
 		}
 	}
 	if (slave.genetics !== undefined) { delete slave.genetics; }
-	slave.geneMods = Object.assign({ NCS: 0, rapidCellGrowth: 0, immortality: 0 }, slave.geneMods);
+	slave.geneMods = Object.assign({NCS: 0, rapidCellGrowth: 0, immortality: 0}, slave.geneMods);
 	if (slave.inducedNCS !== undefined) {
 		slave.geneMods.NCS = slave.inducedNCS;
 		delete slave.inducedNCS;
@@ -116,8 +116,8 @@ App.Update.Slave = function(slave, genepool = false) {
 
 	if (slave.amp !== undefined) {
 		if (slave.amp === 1) {
-			slave.arm = { left: null, right: null };
-			slave.leg = { left: null, right: null };
+			slave.arm = {left: null, right: null};
+			slave.leg = {left: null, right: null};
 		} else {
 			const newID = ((slave.amp * -1) + 1);
 			slave.arm = {
@@ -977,7 +977,7 @@ App.Update.Slave = function(slave, genepool = false) {
 							// don't know your parents, generate new IDs for them
 							setMissingParents(slave);
 						}
-						V.relationLinks[slave.ID] = { mother: slave.mother, father: slave.father };
+						V.relationLinks[slave.ID] = {mother: slave.mother, father: slave.father};
 						// your sister's parents are the same as your parents
 						if (!V.relationLinks[slave.relationTarget]) {
 							V.relationLinks[slave.relationTarget] = V.relationLinks[slave.ID];
@@ -987,12 +987,12 @@ App.Update.Slave = function(slave, genepool = false) {
 					case "mother":
 						// we know your mother. that's easy.
 						slave.mother = slave.relationTarget;
-						V.relationLinks[slave.ID] = { mother: slave.mother, father: 0 };
+						V.relationLinks[slave.ID] = {mother: slave.mother, father: 0};
 						break;
 					case "daughter":
 						// we know you are your daughter's mother. keep track of that in case she's forgotten somehow.
 						if (!V.relationLinks[slave.relationTarget]) {
-							V.relationLinks[slave.relationTarget] = { mother: slave.ID, father: 0 };
+							V.relationLinks[slave.relationTarget] = {mother: slave.ID, father: 0};
 						}
 						break;
 					default:
@@ -1058,7 +1058,7 @@ App.Update.Slave = function(slave, genepool = false) {
 		slave.womb.forEach(f => {
 			// Use null as the ID, since fetuses are missing it
 			f.genetics.inbreedingCoeff = ibc.coeff(
-				{ ID: null, mother: f.genetics.mother, father: f.genetics.father }
+				{ID: null, mother: f.genetics.mother, father: f.genetics.father}
 			);
 		});
 	}