diff --git a/main.py b/main.py
index 4df884d..ffe14ba 100644
--- a/main.py
+++ b/main.py
@@ -385,7 +385,7 @@ if __name__ == '__main__':
     # ppo_cart_pole()
 
     # dqn_pixel_atari('BreakoutNoFrameskip-v4')
-    a2c_pixel_atari('BreakoutNoFrameskip-v4')
+    # a2c_pixel_atari('BreakoutNoFrameskip-v4')
     # categorical_dqn_pixel_atari('BreakoutNoFrameskip-v4')
     # quantile_regression_dqn_pixel_atari('BreakoutNoFrameskip-v4')
     # n_step_dqn_pixel_atari('BreakoutNoFrameskip-v4')
diff --git a/utils/normalizer.py b/utils/normalizer.py
index cfb65ff..dbaaee1 100644
--- a/utils/normalizer.py
+++ b/utils/normalizer.py
@@ -78,7 +78,7 @@ class RunningStatsNormalizer(BaseNormalizer):
 
 class RescaleNormalizer(BaseNormalizer):
     def __init__(self, coef=1.0):
-        super(RescaleNormalizer, self).__init__()
+        BaseNormalizer.__init__(self)
         self.coef = coef
 
     def __call__(self, x):