diff --git a/core/src/com/unciv/ui/newgamescreen/GameOptionsTable.kt b/core/src/com/unciv/ui/newgamescreen/GameOptionsTable.kt
index 5c87c2755e..4da740aba7 100644
--- a/core/src/com/unciv/ui/newgamescreen/GameOptionsTable.kt
+++ b/core/src/com/unciv/ui/newgamescreen/GameOptionsTable.kt
@@ -167,7 +167,7 @@ class GameOptionsTable(previousScreen: IPreviousScreen, val updatePlayerPickerTa
     }
 
     fun Table.addModCheckboxes() {
-        val modRulesets = RulesetCache.filter { it.key != "" }.values
+        val modRulesets = RulesetCache.values.filter { it.name != "" }
         if (modRulesets.isEmpty()) return