diff --git a/core/src/com/unciv/logic/map/TileInfo.kt b/core/src/com/unciv/logic/map/TileInfo.kt
index 09ca5d0f5f..c9ac3b736c 100644
--- a/core/src/com/unciv/logic/map/TileInfo.kt
+++ b/core/src/com/unciv/logic/map/TileInfo.kt
@@ -293,9 +293,8 @@ open class TileInfo {
     fun canBuildImprovement(improvement: TileImprovement, civInfo: CivilizationInfo): Boolean {
         return when {
             improvement.uniqueTo != null && improvement.uniqueTo != civInfo.civName -> false
-            improvement.techRequired?.let { civInfo.tech.isResearched(it) } == false -> false
-            getOwner() != null && getOwner() != civInfo &&
-                    !improvement.hasUnique("Can be built outside your borders") -> false
+            improvement.techRequired!=null && !civInfo.tech.isResearched(improvement.techRequired) -> false
+            getOwner() != civInfo && !improvement.hasUnique("Can be built outside your borders") -> false
             else -> canImprovementBeBuiltHere(improvement, hasViewableResource(civInfo))
         }
     }