diff --git a/Mage.Server/src/main/java/mage/server/game/ReplayManager.java b/Mage.Server/src/main/java/mage/server/game/ReplayManager.java
index d277c158afd..99de309b811 100644
--- a/Mage.Server/src/main/java/mage/server/game/ReplayManager.java
+++ b/Mage.Server/src/main/java/mage/server/game/ReplayManager.java
@@ -45,7 +45,7 @@ public class ReplayManager {
 
     private ReplayManager() {}
 
-    private final ConcurrentHashMap<String, ReplaySession> replaySessions = new ConcurrentHashMap<String, ReplaySession>();
+    private final ConcurrentHashMap<String, ReplaySession> replaySessions = new ConcurrentHashMap<>();
 
     public void replayGame(UUID gameId, UUID userId) {
         ReplaySession replaySession = new ReplaySession(gameId, userId);
diff --git a/Mage/src/mage/players/net/SkipPrioritySteps.java b/Mage/src/mage/players/net/SkipPrioritySteps.java
index 12fc3278efe..a777b4a07dc 100644
--- a/Mage/src/mage/players/net/SkipPrioritySteps.java
+++ b/Mage/src/mage/players/net/SkipPrioritySteps.java
@@ -27,13 +27,14 @@
  */
 package mage.players.net;
 
+import java.io.Serializable;
 import mage.constants.PhaseStep;
 
 /**
  *
  * @author LevelX2
  */
-public class SkipPrioritySteps {
+public class SkipPrioritySteps implements Serializable {
     boolean upkeep;
     boolean draw;
     boolean main1;
diff --git a/Mage/src/mage/players/net/UserSkipPrioritySteps.java b/Mage/src/mage/players/net/UserSkipPrioritySteps.java
index 28d608c6130..4771244ab98 100644
--- a/Mage/src/mage/players/net/UserSkipPrioritySteps.java
+++ b/Mage/src/mage/players/net/UserSkipPrioritySteps.java
@@ -27,12 +27,14 @@
  */
 package mage.players.net;
 
+import java.io.Serializable;
+
 /**
  *
  * @author LevelX2
  */
 
-public class UserSkipPrioritySteps {
+public class UserSkipPrioritySteps implements Serializable {
     SkipPrioritySteps yourTurn;
     SkipPrioritySteps opponentTurn;