diff --git a/src/zeep/transports.py b/src/zeep/transports.py
index 99e28bb8..3cf07a04 100644
--- a/src/zeep/transports.py
+++ b/src/zeep/transports.py
@@ -54,7 +54,7 @@ def __init__(self, cache=None, timeout=300, operation_timeout=None, session=None
             get_version()
         )
 
-    def get(self, address, params, headers):
+    def get(self, address, operation, params, headers):
         """Proxy to requests.get()
 
         :param address: The URL for the request
@@ -67,7 +67,7 @@ def get(self, address, params, headers):
         )
         return response
 
-    def post(self, address, message, headers):
+    def post(self, address, operation, message, headers):
         """Proxy to requests.posts()
 
         :param address: The URL for the request
@@ -106,7 +106,7 @@ def post(self, address, message, headers):
 
         return response
 
-    def post_xml(self, address, envelope, headers):
+    def post_xml(self, address, operation, envelope, headers):
         """Post the envelope xml element to the given address with the headers.
 
         This method is intended to be overriden if you want to customize the
@@ -115,7 +115,7 @@ def post_xml(self, address, envelope, headers):
 
         """
         message = etree_to_string(envelope)
-        return self.post(address, message, headers)
+        return self.post(address, operation, message, headers)
 
     def load(self, url):
         """Load the content from the given URL"""
@@ -229,7 +229,7 @@ def _load_remote_data(self, url):
             raise TransportError(status_code=response.status_code)
         return result
 
-    async def post(self, address, message, headers):
+    async def post(self, address, operation, message, headers):
         self.logger.debug("HTTP Post to %s:\n%s", address, message)
         response = await self.client.post(
             address,
@@ -244,12 +244,12 @@ async def post(self, address, message, headers):
         )
         return response
 
-    async def post_xml(self, address, envelope, headers):
+    async def post_xml(self, address, operation, envelope, headers):
         message = etree_to_string(envelope)
-        response = await self.post(address, message, headers)
+        response = await self.post(address, operation, message, headers)
         return self.new_response(response)
 
-    async def get(self, address, params, headers):
+    async def get(self, address, operation, params, headers):
         response = await self.client.get(
             address,
             params=params,
diff --git a/src/zeep/wsdl/bindings/http.py b/src/zeep/wsdl/bindings/http.py
index e7690197..51f0e4f0 100644
--- a/src/zeep/wsdl/bindings/http.py
+++ b/src/zeep/wsdl/bindings/http.py
@@ -67,7 +67,7 @@ def send(self, client, options, operation, args, kwargs):
 
         url = options["address"] + serialized.path
         response = client.transport.post(
-            url, serialized.content, headers=serialized.headers
+            url, operation, serialized.content, headers=serialized.headers
         )
         return self.process_reply(client, operation_obj, response)
 
@@ -95,7 +95,7 @@ def send(self, client, options, operation, args, kwargs):
 
         url = options["address"] + serialized.path
         response = client.transport.get(
-            url, serialized.content, headers=serialized.headers
+            url, operation, serialized.content, headers=serialized.headers
         )
         return self.process_reply(client, operation_obj, response)
 
diff --git a/src/zeep/wsdl/bindings/soap.py b/src/zeep/wsdl/bindings/soap.py
index 3a5e5433..4cc0d187 100644
--- a/src/zeep/wsdl/bindings/soap.py
+++ b/src/zeep/wsdl/bindings/soap.py
@@ -124,7 +124,7 @@ def send(self, client, options, operation, args, kwargs):
             operation, args, kwargs, client=client, options=options
         )
 
-        response = client.transport.post_xml(options["address"], envelope, http_headers)
+        response = client.transport.post_xml(options["address"], operation, envelope, http_headers)
 
         operation_obj = self.get(operation)
 
@@ -154,7 +154,7 @@ async def send_async(self, client, options, operation, args, kwargs):
         )
 
         response = await client.transport.post_xml(
-            options["address"], envelope, http_headers
+            options["address"], operation, envelope, http_headers
         )
 
         if client.settings.raw_response:
diff --git a/tests/test_async_transport.py b/tests/test_async_transport.py
index 08f2b0f4..5112fd11 100644
--- a/tests/test_async_transport.py
+++ b/tests/test_async_transport.py
@@ -47,7 +47,7 @@ async def test_post(httpx_mock: HTTPXMock):
 
     httpx_mock.add_response(url="http://tests.python-zeep.org/test.xml", content="x")
     result = await transport.post_xml(
-        "http://tests.python-zeep.org/test.xml", envelope=envelope, headers={}
+        "http://tests.python-zeep.org/test.xml", "operation", envelope=envelope, headers={}
     )
 
     assert result.content == b"x"