diff --git a/openstack/session.py b/openstack/session.py
index 8a5fc6633..5b087fcf3 100644
--- a/openstack/session.py
+++ b/openstack/session.py
@@ -70,18 +70,8 @@ def map_exceptions(func):
                     url=e.url, method=e.method,
                     http_status=e.http_status, cause=e)
             else:
-                message = e.message
-                details = e.details
-
-                if e.response is not None:
-                    body = e.response.json()
-                    if 'NeutronError' in body:
-                        err_dict = body['NeutronError']
-                        message = err_dict.get('message') or message
-                        details = err_dict.get('detail') or details
-
                 raise exceptions.HttpException(
-                    message=message, details=details,
+                    message=e.message, details=e.details,
                     response=e.response, request_id=e.request_id,
                     url=e.url, method=e.method,
                     http_status=e.http_status, cause=e)
diff --git a/openstack/tests/functional/network/v2/test_router.py b/openstack/tests/functional/network/v2/test_router.py
index 8e8a64ea0..1102c5da1 100644
--- a/openstack/tests/functional/network/v2/test_router.py
+++ b/openstack/tests/functional/network/v2/test_router.py
@@ -12,7 +12,6 @@
 
 import uuid
 
-from openstack import exceptions
 from openstack.network.v2 import router
 from openstack.tests.functional import base
 
@@ -55,20 +54,3 @@ class TestRouter(base.BaseFunctionalTest):
     def test_update(self):
         sot = self.conn.network.update_router(self.ID, name=self.UPDATE_NAME)
         self.assertEqual(self.UPDATE_NAME, sot.name)
-
-    def test_error(self):
-        destination = "10.10.10.0/24"
-        nexthop = "192.168.0.13"
-        message = "Invalid input for routes. Reason: Invalid data format " \
-                  "for hostroute: '{u'destination': u'%s', " \
-                  "u'nexthop': u'%s'}'." % (destination, nexthop)
-
-        with self.assertRaises(exceptions.HttpException) as cm:
-            routes = {
-                "destination": destination,
-                "nexthop": nexthop,
-            }
-
-            self.conn.network.update_router(self.ID, routes=routes)
-
-        self.assertEqual(message, cm.exception.message)
diff --git a/openstack/tests/unit/test_session.py b/openstack/tests/unit/test_session.py
index d36194d17..a1f8ebc85 100644
--- a/openstack/tests/unit/test_session.py
+++ b/openstack/tests/unit/test_session.py
@@ -82,28 +82,6 @@ class TestSession(testtools.TestCase):
         self.assertEqual(ksa_exc.http_status, os_exc.http_status)
         self.assertEqual(ksa_exc, os_exc.cause)
 
-    def test_map_exceptions_neutron_exception(self):
-        fake_response = mock.Mock()
-        message = "neutron error message"
-        detail = "neutron detailed message"
-        body = {
-            "NeutronError": {
-                "message": message,
-                "detail": detail,
-            }
-        }
-
-        fake_response.json = mock.Mock(return_value=body)
-
-        ksa_exc = _exceptions.HttpError(response=fake_response)
-        func = mock.Mock(side_effect=ksa_exc)
-
-        os_exc = self.assertRaises(
-            exceptions.HttpException, session.map_exceptions(func))
-
-        self.assertEqual(message, os_exc.message)
-        self.assertEqual(detail, os_exc.details)
-
     def test_map_exceptions_sdk_exception_1(self):
         ksa_exc = _exceptions.ClientException()
         func = mock.Mock(side_effect=ksa_exc)