diff --git a/osm_nbi/engine.py b/osm_nbi/engine.py
index 37f1fb2..1f0308a 100644
--- a/osm_nbi/engine.py
+++ b/osm_nbi/engine.py
@@ -36,7 +36,7 @@
 from osm_nbi.base_topic import EngineException, versiontuple
 from osm_nbi.admin_topics import VimAccountTopic, WimAccountTopic, SdnTopic
 from osm_nbi.admin_topics import K8sClusterTopic, K8sRepoTopic, OsmRepoTopic
-from osm_nbi.admin_topics import VcaTopic
+from osm_nbi.admin_topics import VcaTopic, PaasTopic
 from osm_nbi.admin_topics import UserTopicAuth, ProjectTopicAuth, RoleTopicAuth
 from osm_nbi.descriptor_topics import (
     VnfdTopic,
@@ -78,6 +78,7 @@
         "sdns": SdnTopic,
         "k8sclusters": K8sClusterTopic,
         "vca": VcaTopic,
+        "paas": PaasTopic,
         "k8srepos": K8sRepoTopic,
         "osmrepos": OsmRepoTopic,
         "users": UserTopicAuth,  # Valid for both internal and keystone authentication backends
@@ -293,7 +294,9 @@
         :return: The list, it can be empty if no one match the filter_q.
         """
         if topic not in self.map_topic:
-            raise EngineException("Unknown topic {}!!!".format(topic), HTTPStatus.INTERNAL_SERVER_ERROR)
+            raise EngineException(
+                "Unknown topic {}!!!".format(topic), HTTPStatus.INTERNAL_SERVER_ERROR
+            )
         return self.map_topic[topic].list(session, filter_q, api_req)
 
     def get_item(self, session, topic, _id, filter_q=None, api_req=False):
@@ -307,7 +310,9 @@
         :return: dictionary, raise exception if not found.
         """
         if topic not in self.map_topic:
-            raise EngineException("Unknown topic {}!!!".format(topic), HTTPStatus.INTERNAL_SERVER_ERROR)
+            raise EngineException(
+                "Unknown topic {}!!!".format(topic), HTTPStatus.INTERNAL_SERVER_ERROR
+            )
         return self.map_topic[topic].show(session, _id, filter_q, api_req)
 
     def get_file(self, session, topic, _id, path=None, accept_header=None):