diff --git a/test/inductor/test_max_autotune.py b/test/inductor/test_max_autotune.py
index f5339774368d9..58f1ae439abdf 100644
--- a/test/inductor/test_max_autotune.py
+++ b/test/inductor/test_max_autotune.py
@@ -4149,6 +4149,11 @@ def setUpClass(cls):
             )
         )
 
+    @classmethod
+    def tearDownClass(cls):
+        cls._stack.close()
+        super().tearDownClass()
+
     def check_code(self, code_str, num_kernels, num_allocs, num_deallocs):
         FileCheck().check(get_func_call()).check_count(
             get_kernel_launch(),
@@ -4642,6 +4647,11 @@ def setUpClass(cls):
             )
         )
 
+    @classmethod
+    def tearDownClass(cls):
+        cls._stack.close()
+        super().tearDownClass()
+
     @contextlib.contextmanager
     def get_common_patches(
         self,