diff --git a/Mage.Tests/src/test/java/org/mage/test/player/TestPlayer.java b/Mage.Tests/src/test/java/org/mage/test/player/TestPlayer.java
index 4582e497d63..627f0930642 100644
--- a/Mage.Tests/src/test/java/org/mage/test/player/TestPlayer.java
+++ b/Mage.Tests/src/test/java/org/mage/test/player/TestPlayer.java
@@ -2007,6 +2007,11 @@ public class TestPlayer implements Player {
         computerPlayer.declareBlocker(defenderId, blockerId, attackerId, game);
     }
 
+    @Override
+    public void declareBlocker(UUID defenderId, UUID blockerId, UUID attackerId, Game game, boolean allowUndo) {
+        computerPlayer.declareBlocker(defenderId, blockerId, attackerId, game, allowUndo);
+    }
+
     @Override
     public boolean searchLibrary(TargetCardInLibrary target, Game game) {
         return computerPlayer.searchLibrary(target, game);