diff --git a/reasoning_gym/algorithmic/game_of_life_halting.py b/reasoning_gym/algorithmic/game_of_life_halting.py
index b3ade503..99b9661e 100644
--- a/reasoning_gym/algorithmic/game_of_life_halting.py
+++ b/reasoning_gym/algorithmic/game_of_life_halting.py
@@ -263,6 +263,9 @@ class GameOfLifeHaltingDataset(ProceduralDataset):
         },
     ]
 
+    def __init__(self, config: GameOfLifeHaltingConfig):
+        super().__init__(config=config, seed=config.seed, size=config.size)
+
     def __getitem__(self, idx: int) -> dict:
         """Generate a single GameOfLife task
 
diff --git a/tests/test_game_of_life.py b/tests/test_game_of_life.py
index bc3c0c61..a0b8798e 100644
--- a/tests/test_game_of_life.py
+++ b/tests/test_game_of_life.py
@@ -23,11 +23,14 @@ def test_game_of_life_config_validation():
 def test_game_of_life_deterministic():
     """Test that dataset generates same items with same seed"""
     config = GameOfLifeConfig(seed=42, size=10)
+    config2 = GameOfLifeConfig(seed=43, size=10)
     dataset1 = GameOfLifeDataset(config)
     dataset2 = GameOfLifeDataset(config)
+    dataset3 = GameOfLifeDataset(config2)
 
     for i in range(len(dataset1)):
         assert dataset1[i] == dataset2[i]
+        assert dataset1[i] != dataset3[i]
 
 
 def test_game_of_life_basic_properties():
diff --git a/tests/test_game_of_life_halting.py b/tests/test_game_of_life_halting.py
index 503808e3..b09d0989 100644
--- a/tests/test_game_of_life_halting.py
+++ b/tests/test_game_of_life_halting.py
@@ -25,3 +25,16 @@ def test_game_of_life():
         # # Test the scoring
         assert dataset.score_answer(answer=item["answer"], entry=item) == 1.0
         assert dataset.score_answer(answer=None, entry=item) == 0.0
+
+
+def test_game_of_life_halting_deterministic():
+    """Test that dataset generates same items with same seed"""
+    config = GameOfLifeHaltingConfig(seed=42, size=10)
+    config2 = GameOfLifeHaltingConfig(seed=43, size=10)
+    dataset1 = GameOfLifeHaltingDataset(config)
+    dataset2 = GameOfLifeHaltingDataset(config)
+    dataset3 = GameOfLifeHaltingDataset(config2)
+
+    for i in range(len(dataset1)):
+        assert dataset1[i] == dataset2[i]
+        assert dataset1[i] != dataset3[i]