diff --git a/Mage/src/main/java/mage/players/Library.java b/Mage/src/main/java/mage/players/Library.java
index 65fab4a09e..34190ca4ec 100644
--- a/Mage/src/main/java/mage/players/Library.java
+++ b/Mage/src/main/java/mage/players/Library.java
@@ -27,16 +27,15 @@
  */
 package mage.players;
 
+import java.io.Serializable;
+import java.util.*;
+import java.util.stream.Collectors;
 import mage.cards.Card;
 import mage.constants.Zone;
 import mage.filter.FilterCard;
 import mage.game.Game;
 import mage.util.RandomUtil;
 
-import java.io.Serializable;
-import java.util.*;
-import java.util.stream.Collectors;
-
 /**
  * @author BetaSteward_at_googlemail.com
  */
@@ -64,7 +63,7 @@ public class Library implements Serializable {
     public void shuffle() {
         UUID[] shuffled = library.toArray(new UUID[0]);
         for (int n = shuffled.length - 1; n > 0; n--) {
-            int r = RandomUtil.nextInt(n);
+            int r = RandomUtil.nextInt(n + 1);
             UUID temp = shuffled[n];
             shuffled[n] = shuffled[r];
             shuffled[r] = temp;
@@ -235,7 +234,6 @@ public class Library implements Serializable {
         return null;
     }
 
-
     public boolean hasCards() {
         return size() > 0;
     }