diff --git a/mistral/engine/rpc_backend/kombu/kombu_server.py b/mistral/engine/rpc_backend/kombu/kombu_server.py
index 413bb05f..5ce6c750 100644
--- a/mistral/engine/rpc_backend/kombu/kombu_server.py
+++ b/mistral/engine/rpc_backend/kombu/kombu_server.py
@@ -115,6 +115,8 @@ class KombuRPCServer(rpc_base.RPCServer, kombu_base.Base):
         context = auth_context.MistralContext(**ctx)
         auth_context.set_ctx(context)
 
+        return context
+
     def publish_message(self, body, reply_to, corr_id, type='response'):
         with kombu.producers[self.conn].acquire(block=True) as producer:
             producer.publish(
@@ -144,13 +146,13 @@ class KombuRPCServer(rpc_base.RPCServer, kombu_base.Base):
                   request)
 
         is_async = request.get('async', False)
-        rpc_context = request.get('rpc_ctx')
+        rpc_ctx = request.get('rpc_ctx')
         rpc_method_name = request.get('rpc_method')
         arguments = request.get('arguments')
         correlation_id = message.properties['correlation_id']
         reply_to = message.properties['reply_to']
 
-        self._set_auth_ctx(rpc_context)
+        rpc_context = self._set_auth_ctx(rpc_ctx)
 
         rpc_method = self._get_rpc_method(rpc_method_name)
 
diff --git a/mistral/tests/unit/engine/rpc_backend/kombu/test_kombu_server.py b/mistral/tests/unit/engine/rpc_backend/kombu/test_kombu_server.py
index 3f3e2084..4c20bc92 100644
--- a/mistral/tests/unit/engine/rpc_backend/kombu/test_kombu_server.py
+++ b/mistral/tests/unit/engine/rpc_backend/kombu/test_kombu_server.py
@@ -194,11 +194,13 @@ class KombuServerTestCase(base.KombuTestCase):
 
     @mock.patch.object(kombu_server.KombuRPCServer, 'publish_message')
     @mock.patch.object(kombu_server.KombuRPCServer, '_get_rpc_method')
-    def test__on_message_is_async(self, get_rpc_method, publish_message):
+    @mock.patch('mistral.context.MistralContext')
+    def test__on_message_is_async(self, mistral_context, get_rpc_method,
+                                  publish_message):
         result = 'result'
         request = {
             'async': True,
-            'rpc_ctx': self.ctx,
+            'rpc_ctx': {},
             'rpc_method': 'found_method',
             'arguments': {
                 'a': 1,
@@ -217,7 +219,7 @@ class KombuServerTestCase(base.KombuTestCase):
 
         self.server._on_message(request, message)
         rpc_method.assert_called_once_with(
-            rpc_ctx=self.ctx,
+            rpc_ctx=mistral_context(),
             a=1,
             b=2
         )
@@ -225,11 +227,13 @@ class KombuServerTestCase(base.KombuTestCase):
 
     @mock.patch.object(kombu_server.KombuRPCServer, 'publish_message')
     @mock.patch.object(kombu_server.KombuRPCServer, '_get_rpc_method')
-    def test__on_message_is_sync(self, get_rpc_method, publish_message):
+    @mock.patch('mistral.context.MistralContext')
+    def test__on_message_is_sync(self, mistral_context, get_rpc_method,
+                                 publish_message):
         result = 'result'
         request = {
             'async': False,
-            'rpc_ctx': self.ctx,
+            'rpc_ctx': {},
             'rpc_method': 'found_method',
             'arguments': {
                 'a': 1,
@@ -250,7 +254,7 @@ class KombuServerTestCase(base.KombuTestCase):
 
         self.server._on_message(request, message)
         rpc_method.assert_called_once_with(
-            rpc_ctx=self.ctx,
+            rpc_ctx=mistral_context(),
             a=1,
             b=2
         )