diff --git a/core/src/com/unciv/logic/civilization/CivilizationInfo.kt b/core/src/com/unciv/logic/civilization/CivilizationInfo.kt
index 8e3e8422..765405ab 100644
--- a/core/src/com/unciv/logic/civilization/CivilizationInfo.kt
+++ b/core/src/com/unciv/logic/civilization/CivilizationInfo.kt
@@ -296,7 +296,11 @@ class CivilizationInfo {
 
         tech.civInfo = this
         tech.setTransients()
-        diplomacy.values.forEach { it.civInfo=this}
+
+        diplomacy.values.forEach {
+            it.civInfo=this
+            it.updateHasOpenBorders()
+        }
 
         victoryManager.civInfo=this
 
diff --git a/core/src/com/unciv/logic/civilization/diplomacy/DiplomacyManager.kt b/core/src/com/unciv/logic/civilization/diplomacy/DiplomacyManager.kt
index 5b45e37d..2b65f661 100644
--- a/core/src/com/unciv/logic/civilization/diplomacy/DiplomacyManager.kt
+++ b/core/src/com/unciv/logic/civilization/diplomacy/DiplomacyManager.kt
@@ -85,7 +85,6 @@ class DiplomacyManager() {
         toReturn.trades.addAll(trades.map { it.clone() })
         toReturn.influence = influence
         toReturn.flagsCountdown.putAll(flagsCountdown)
-        toReturn.hasOpenBorders=hasOpenBorders
         toReturn.diplomaticModifiers.putAll(diplomaticModifiers)
         return toReturn
     }