diff --git a/Mage.Tests/src/test/java/org/mage/test/serverside/performance/SerializationTest.java b/Mage.Tests/src/test/java/org/mage/test/serverside/performance/SerializationTest.java
index 4234a680ca..ceb21d3a7c 100644
--- a/Mage.Tests/src/test/java/org/mage/test/serverside/performance/SerializationTest.java
+++ b/Mage.Tests/src/test/java/org/mage/test/serverside/performance/SerializationTest.java
@@ -60,6 +60,21 @@ public class SerializationTest extends CardTestPlayerBase {
         Assert.assertEquals("Must get infected counter", 1, permanent.getCounters(currentGame).getCount(CounterType.M1M1));
     }
 
+    @Test
+    public void test_Single_KentaroTheSmilingCat() {
+        CardInfo cardInfo = CardRepository.instance.findCard("Kentaro, the Smiling Cat");
+        Card newCard = cardInfo.getCard();
+        Card permCard = CardUtil.getDefaultCardSideForBattlefield(newCard);
+        PermanentImpl permanent = new PermanentCard(permCard, playerA.getId(), currentGame);
+        currentGame.addPermanent(permanent, 0);
+
+        // test compress (it uses default java serialization)
+        Object compressed = CompressUtil.compress(permanent);
+        Assert.assertTrue("Must be zip", compressed instanceof ZippedObjectImpl);
+        PermanentImpl uncompressed = (PermanentImpl) CompressUtil.decompress(compressed);
+        Assert.assertEquals("Must be same", permanent.getName(), uncompressed.getName());
+    }
+
     @Test
     public void test_LondonMulligan() {
         LondonMulligan mulligan = new LondonMulligan(15);
diff --git a/Mage/src/main/java/mage/abilities/costs/DynamicCost.java b/Mage/src/main/java/mage/abilities/costs/DynamicCost.java
index efb39245d3..1eee4f2d0a 100644
--- a/Mage/src/main/java/mage/abilities/costs/DynamicCost.java
+++ b/Mage/src/main/java/mage/abilities/costs/DynamicCost.java
@@ -3,10 +3,12 @@ package mage.abilities.costs;
 import mage.abilities.Ability;
 import mage.game.Game;
 
-public interface DynamicCost {
-	
-	Cost getCost(Ability ability, Game game);
-	
-	String getText(Ability ability, Game game);
+import java.io.Serializable;
+
+public interface DynamicCost extends Serializable {
+
+    Cost getCost(Ability ability, Game game);
+
+    String getText(Ability ability, Game game);
 
 }