diff --git a/BauSystem_Main/src/de/steamwar/bausystem/region/FlagStorage.java b/BauSystem_Main/src/de/steamwar/bausystem/region/FlagStorage.java
index 8efdb4eb..dbd30203 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/region/FlagStorage.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/region/FlagStorage.java
@@ -38,7 +38,11 @@ public class FlagStorage {
 	}
 
 	public boolean set(final Flag flagType, final Flag.Value<?> value) {
-		return flags.put(flagType, value) != value;
+		if (flags.put(flagType, value) != value) {
+			writeChangedKey(flagType, value);
+			return true;
+		}
+		return false;
 	}
 
 	@SuppressWarnings("unchecked")
@@ -52,4 +56,8 @@ public class FlagStorage {
 			flags.put(flag, flagValue == null ? flag.getDefaultValue() : flag.getFlagValueOf(flagValue.getAsString().toUpperCase()));
 		}
 	}
+
+	private void writeChangedKey(Flag flag, Flag.Value<?> value) {
+		jsonObject.add(flag.name().toLowerCase(), new JsonPrimitive(value.getValue().getName()));
+	}
 }
\ No newline at end of file