diff --git a/Mage.Client/src/main/java/mage/client/game/GamePanel.java b/Mage.Client/src/main/java/mage/client/game/GamePanel.java
index f04ffbd738..2151f75e62 100644
--- a/Mage.Client/src/main/java/mage/client/game/GamePanel.java
+++ b/Mage.Client/src/main/java/mage/client/game/GamePanel.java
@@ -102,7 +102,7 @@ public final class GamePanel extends javax.swing.JPanel {
 
     private boolean initComponents;
 
-    private final Timer resizeTimer;
+    private Timer resizeTimer; // can't be final
 
     private enum PopUpMenuType {
         TRIGGER_ORDER