diff --git a/EnemizerLibrary/BossRandomizer/Pool/NormalBossPool.cs b/EnemizerLibrary/BossRandomizer/Pool/NormalBossPool.cs
index 2740ccc..476ad0a 100644
--- a/EnemizerLibrary/BossRandomizer/Pool/NormalBossPool.cs
+++ b/EnemizerLibrary/BossRandomizer/Pool/NormalBossPool.cs
@@ -16,10 +16,18 @@ public NormalBossPool(Random rand)
 
         protected override void FillGTPool()
         {
-            pool.Add(Boss.GetRandomBoss(rand, new GT1Dungeon())); // GT1
-            pool.Add(Boss.GetRandomBoss(rand, new GT2Dungeon())); // GT2
-            pool.Add(Boss.GetRandomBoss(rand, new GT3Dungeon())); // GT3
+            List<Boss> GTPool = new List<Boss>(pool);
+            Boss newBoss = Boss.GetRandomBoss(rand, new GT1Dungeon()); // GT1
+            GTPool.Add(newBoss);
+            do {
+                newBoss = Boss.GetRandomBoss(rand, new GT2Dungeon()); // GT2
+            } while (GTPool.contains(newBoss));
+            GTPool.Add(newBoss);
+            do {
+                newBoss = Boss.GetRandomBoss(rand, new GT3Dungeon()); // GT3
+            } while (GTPool.contains(newBoss));
+            GTPool.Add(newBoss);
+            GTPool.ForEach(boss => pool.add(boss));
         }
-
     }
 }