diff --git a/core/src/com/unciv/models/ruleset/unique/UniqueParameterType.kt b/core/src/com/unciv/models/ruleset/unique/UniqueParameterType.kt
index 76ccfe5e40..b45e6691fa 100644
--- a/core/src/com/unciv/models/ruleset/unique/UniqueParameterType.kt
+++ b/core/src/com/unciv/models/ruleset/unique/UniqueParameterType.kt
@@ -357,6 +357,7 @@ enum class UniqueParameterType(
             parameterText in staticKnownValues -> true
             ImprovementFilter.isKnownValue(parameterText, ruleset) -> true
             TerrainFilter.isKnownValue(parameterText, ruleset) -> true
+            CivFilter.isKnownValue(parameterText, ruleset) -> true
             else -> false
         }