diff --git a/test/azure/AcceptanceTests/asynctests/test_lro.py b/test/azure/AcceptanceTests/asynctests/test_lro.py
index c18928bd919..20c890f092b 100644
--- a/test/azure/AcceptanceTests/asynctests/test_lro.py
+++ b/test/azure/AcceptanceTests/asynctests/test_lro.py
@@ -136,7 +136,10 @@ async def test_post_double_headers_final(self, client):
         product = await client.lros.post_double_headers_final_azure_header_get()
         assert product.id == "100"
 
-        # This test will work as long as the default is Azure-AsyncOperation
+    @pytest.mark.xfail(reason="https://github.com/Azure/autorest.python/pull/512")
+    @pytest.mark.asyncio
+    async def test_post_double_headers_default(self, client):
+        # This test will work as long as the default is Location
         product = await client.lros.post_double_headers_final_azure_header_get_default()
         assert product.id == "100"
 
diff --git a/test/azure/AcceptanceTests/test_lro.py b/test/azure/AcceptanceTests/test_lro.py
index 41a9bbe2842..ae6ebfbb9cb 100644
--- a/test/azure/AcceptanceTests/test_lro.py
+++ b/test/azure/AcceptanceTests/test_lro.py
@@ -134,7 +134,9 @@ def test_post_double_headers_final(self, client):
         product = client.lros.begin_post_double_headers_final_azure_header_get().result()
         assert product.id == "100"
 
-        # This test will work as long as the default is Azure-AsyncOperation
+    @pytest.mark.xfail(reason="https://github.com/Azure/autorest.python/pull/512")
+    def test_post_double_headers_default(self, client):
+        # This test will work as long as the default is Location
         product = client.lros.begin_post_double_headers_final_azure_header_get_default().result()
         assert product.id == "100"