diff --git a/mixmatch/proxy.py b/mixmatch/proxy.py
index d6592db..2001997 100644
--- a/mixmatch/proxy.py
+++ b/mixmatch/proxy.py
@@ -84,6 +84,7 @@ class RequestDetails(object):
         self.service = get_service(local_path)
         self.version = utils.safe_pop(local_path)
         self.project_id = utils.pop_if_uuid(local_path)
+        self.project_in_path = True if self.project_id else False
         self.action = local_path[:]  # NOTE(knikolla): This includes
         self.resource_type = utils.safe_pop(local_path)  # this
         self.resource_id = utils.pop_if_uuid(local_path)  # and this
@@ -194,7 +195,7 @@ class RequestHandler(object):
             self.details.service,
             self.details.version,
             self.details.action,
-            project_id=project_id
+            project_id=project_id if self.details.project_in_path else None
         )
 
         request_kwargs = {
diff --git a/mixmatch/tests/unit/test_volumes.py b/mixmatch/tests/unit/test_volumes.py
index 4fa583a..427e879 100644
--- a/mixmatch/tests/unit/test_volumes.py
+++ b/mixmatch/tests/unit/test_volumes.py
@@ -392,6 +392,22 @@ class TestVolumesV2(base.BaseTest):
         self.assertEqual(response.get_data(as_text=True),
                          fake_response)
 
+    def test_unversioned_call_no_action_no_aggregation_token(self):
+        self.config_fixture.load_raw_values(aggregation=False)
+        fake_response = uuid.uuid4().hex
+
+        self.requests_fixture.get(
+            self._construct_url(sp='default'),
+            text=fake_response,
+            status_code=200,
+            request_headers=self.auth.get_headers(),
+            headers={'CONTENT-TYPE': 'application/json'})
+
+        response = self.app.get('volume', headers=self.auth.get_headers())
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.get_data(as_text=True),
+                         fake_response)
+
     def test_volume_versioned_calls_no_action(self):
         response = self.app.get(
             '/volume/v2',