diff --git a/core/src/com/unciv/models/metadata/GameParameters.kt b/core/src/com/unciv/models/metadata/GameParameters.kt
index 4a8959130c..f990745b8f 100644
--- a/core/src/com/unciv/models/metadata/GameParameters.kt
+++ b/core/src/com/unciv/models/metadata/GameParameters.kt
@@ -25,7 +25,7 @@ class GameParameters { // Default values are the default new game
 
     // By default, all victory types except Diplomacy as it is quite new
     var victoryTypes: ArrayList<VictoryType> = arrayListOf(VictoryType.Cultural, VictoryType.Domination, VictoryType.Scientific)  
-    var startingEra = "Ancient Era"
+    var startingEra = "Ancient era"
 
     var isOnlineMultiplayer = false
     var baseRuleset: BaseRuleset = BaseRuleset.Civ_V_Vanilla
diff --git a/core/src/com/unciv/ui/worldscreen/WorldScreenTopBar.kt b/core/src/com/unciv/ui/worldscreen/WorldScreenTopBar.kt
index 4f9294a88e..19534df5a8 100644
--- a/core/src/com/unciv/ui/worldscreen/WorldScreenTopBar.kt
+++ b/core/src/com/unciv/ui/worldscreen/WorldScreenTopBar.kt
@@ -294,8 +294,7 @@ class WorldScreenTopBar(val worldScreen: WorldScreen) : Table() {
 
     private fun getEquivalentTurn(gameInfo: GameInfo): Int {
         val totalTurns = 500f * gameInfo.gameParameters.gameSpeed.modifier
-        val startPercent = gameInfo.ruleSet.eras[gameInfo.gameParameters.startingEra]?.startPercent
-        if (startPercent == null) return gameInfo.turns
+        val startPercent = gameInfo.ruleSet.eras[gameInfo.gameParameters.startingEra]!!.startPercent
         return gameInfo.turns + ((totalTurns * startPercent).toInt() / 100)
     }
 }
diff --git a/tests/src/com/unciv/testing/SerializationTests.kt b/tests/src/com/unciv/testing/SerializationTests.kt
index b510ba4729..fd83d2cf1d 100644
--- a/tests/src/com/unciv/testing/SerializationTests.kt
+++ b/tests/src/com/unciv/testing/SerializationTests.kt
@@ -51,7 +51,6 @@ class SerializationTests {
             players.add(Player("Rome").apply { playerType = PlayerType.Human })
             players.add(Player("Greece"))
             religionEnabled = true
-            startingEra = "Ancient era"
         }
         val mapParameters = MapParameters().apply {
             mapSize = MapSizeNew(MapSize.Tiny)