diff --git a/core/src/com/unciv/logic/map/tile/TileImprovementFunctions.kt b/core/src/com/unciv/logic/map/tile/TileImprovementFunctions.kt
index b350d6c86bcc7..001a94a92df06 100644
--- a/core/src/com/unciv/logic/map/tile/TileImprovementFunctions.kt
+++ b/core/src/com/unciv/logic/map/tile/TileImprovementFunctions.kt
@@ -260,12 +260,18 @@ class TileImprovementFunctions(val tile: Tile) {
             UniqueTriggerActivation.triggerUnique(unique, civ, unit = unit, tile = tile)
 
         for (unique in civ.getTriggeredUniques(UniqueType.TriggerUponBuildingImprovement, stateForConditionals)
-            .filter { improvement.matchesFilter(it.params[0]) })
+            .filter {
+                it.getModifiers(UniqueType.TriggerUponBuildingImprovement).any {
+                    improvement.matchesFilter(it.params[0])
+                } })
             UniqueTriggerActivation.triggerUnique(unique, civ, unit = unit, tile = tile)
 
         if (unit == null) return
         for (unique in unit.getTriggeredUniques(UniqueType.TriggerUponBuildingImprovement, stateForConditionals)
-            .filter { improvement.matchesFilter(it.params[0]) })
+            .filter {
+                it.getModifiers(UniqueType.TriggerUponBuildingImprovement).any {
+                    improvement.matchesFilter(it.params[0])
+                } })
             UniqueTriggerActivation.triggerUnique(unique, civ, unit = unit, tile = tile)
     }