diff --git a/Mage.Sets/src/mage/sets/urzassaga/Contamination.java b/Mage.Sets/src/mage/sets/urzassaga/Contamination.java
index c4ebedb2ada..d4ccf5e8ec8 100644
--- a/Mage.Sets/src/mage/sets/urzassaga/Contamination.java
+++ b/Mage.Sets/src/mage/sets/urzassaga/Contamination.java
@@ -114,7 +114,7 @@ class ContaminationReplacementEffect extends ReplacementEffectImpl {
 
     @Override
     public boolean applies(GameEvent event, Ability source, Game game) {
-        MageObject mageObject = source.getSourceObject(game);
+        MageObject mageObject = game.getObject(event.getSourceId());
         return mageObject != null && mageObject.getCardType().contains(CardType.LAND);
     }
 }