diff --git a/Mage/src/main/java/mage/cards/ExpansionSet.java b/Mage/src/main/java/mage/cards/ExpansionSet.java
index 42ef02c8f2e..0333c47f689 100644
--- a/Mage/src/main/java/mage/cards/ExpansionSet.java
+++ b/Mage/src/main/java/mage/cards/ExpansionSet.java
@@ -234,7 +234,7 @@ public abstract class ExpansionSet implements Serializable {
         
          //Battlebond packs alway contain both partners
         if (hasPartnerMechanic){
-            booster = createPartnerBooster();
+            List<Card> booster = createPartnerBooster();
             return booster;
         }
         return tryBooster();