diff --git a/triton_patch/python/triton_patch/runtime/autotiling_tuner.py b/triton_patch/python/triton_patch/runtime/autotiling_tuner.py
index 2ca12a57a1aa6e511bf61ac25f79cfe853e7e781..357b4509ab8aed5de8d7ae8b1bcbd725815cedd3 100644
--- a/triton_patch/python/triton_patch/runtime/autotiling_tuner.py
+++ b/triton_patch/python/triton_patch/runtime/autotiling_tuner.py
@@ -122,16 +122,7 @@ class AutoTilingTuner(Autotuner):
 
         if len(self.gen_configs) == 0 and len(self.user_configs) == 0:
             return [
-                Config(
-                    {},
-                    num_warps=4,
-                    num_stages=2,
-                    num_ctas=1,
-                    num_buffers_warp_spec=0,
-                    num_consumer_groups=0,
-                    reg_dec_producer=0,
-                    reg_inc_consumer=0,
-                )
+                Config({})
             ]
         else:
             return self.gen_configs + self.user_configs
diff --git a/triton_patch/python/triton_patch/runtime/autotuner.py b/triton_patch/python/triton_patch/runtime/autotuner.py
index 6c519294834d35df927de385f3f0a7b9450bc51f..67753e129eda03a46de2e15cf34105f1e1c294c8 100644
--- a/triton_patch/python/triton_patch/runtime/autotuner.py
+++ b/triton_patch/python/triton_patch/runtime/autotuner.py
@@ -38,8 +38,7 @@ class Autotuner(KernelInterface):
         """
         if not configs:
             self.configs = [
-                Config({}, num_warps=4, num_stages=2, num_ctas=1, num_buffers_warp_spec=0, num_consumer_groups=0,
-                       reg_dec_producer=0, reg_inc_consumer=0)
+                Config({})
             ]
         else:
             self.configs = configs
@@ -303,8 +302,8 @@ class Config:
     :ivar bishengir_options: dict of options that pass to bishengir.
     """
 
-    def __init__(self, kwargs, num_warps=4, num_stages=2, num_ctas=1, num_buffers_warp_spec=0, num_consumer_groups=0,
-                 reg_dec_producer=0, reg_inc_consumer=0, maxnreg=None, pre_hook=None, **bishengir_options):
+    def __init__(self, kwargs, num_warps=None, num_stages=None, num_ctas=None, num_buffers_warp_spec=None, num_consumer_groups=None,
+                 reg_dec_producer=None, reg_inc_consumer=None, maxnreg=None, pre_hook=None, **bishengir_options):
         self.kwargs = kwargs
         self.num_warps = num_warps
         self.num_ctas = num_ctas