diff --git a/js/003-data/gameVariableData.js b/js/003-data/gameVariableData.js
index 47a5bbe57824cb5bbaf768dfcb85fc5031ec9033..88433ae4c7fcf6b2df2f776b4696d656db9771f4 100644
--- a/js/003-data/gameVariableData.js
+++ b/js/003-data/gameVariableData.js
@@ -12,7 +12,7 @@ App.Data.defaultGameStateVariables = {
 	releaseID: 0,
 
 	// Slaves
-	slaveIndices: [],
+	slaveIndices: {},
 	genePool: [],
 	geneMods: {NCS: 0, rapidCellGrowth: 0},
 	missingTable: {},