diff --git a/Mage/src/main/java/mage/abilities/effects/keyword/AmassEffect.java b/Mage/src/main/java/mage/abilities/effects/keyword/AmassEffect.java
index 2c103509beb..ff46aaa66b3 100644
--- a/Mage/src/main/java/mage/abilities/effects/keyword/AmassEffect.java
+++ b/Mage/src/main/java/mage/abilities/effects/keyword/AmassEffect.java
@@ -68,7 +68,7 @@ public class AmassEffect extends OneShotEffect {
         if (player == null) {
             return false;
         }
-        if (!game.getBattlefield().contains(filter, 1, game)) {
+        if (!game.getBattlefield().contains(filter, source.getControllerId(), 1, game)) {
             new CreateTokenEffect(new ZombieArmyToken()).apply(game, source);
         }
         Target target = new TargetPermanent(filter);