--- a/src/plugins/plugin_tmp_directory_subscription.py	Sun Feb 12 17:55:43 2017 +0100
+++ b/src/plugins/plugin_tmp_directory_subscription.py	Sun Feb 12 18:59:10 2017 +0100
@@ -19,20 +19,21 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from sat.core.i18n import _, D_
+from sat.core.constants import Const as C
 from sat.core.log import getLogger
 log = getLogger(__name__)
 
 
 PLUGIN_INFO = {
-    "name": "Directory subscription plugin",
-    "import_name": "DIRECTORY-SUBSCRIPTION",
-    "type": "TMP",
-    "protocols": [],
-    "dependencies": ["XEP-0050", "XEP-0055"],
-    "recommendations": [],
-    "main": "DirectorySubscription",
-    "handler": "no",
-    "description": _("""Implementation of directory subscription""")
+    C.PI_NAME: "Directory subscription plugin",
+    C.PI_IMPORT_NAME: "DIRECTORY-SUBSCRIPTION",
+    C.PI_TYPE: "TMP",
+    C.PI_PROTOCOLS: [],
+    C.PI_DEPENDENCIES: ["XEP-0050", "XEP-0055"],
+    C.PI_RECOMMENDATIONS: [],
+    C.PI_MAIN: "DirectorySubscription",
+    C.PI_HANDLER: "no",
+    C.PI_DESCRIPTION: _("""Implementation of directory subscription""")
 }
 
 
@@ -55,7 +56,7 @@
         @return: a deferred dict{unicode: unicode}
         """
         d = self.host.plugins["XEP-0055"]._getHostServices(profile)
-        
+
         def got_services(services):
             service_jid = services[0]
             session_id, session_data = self.host.plugins["XEP-0050"].requesting.newSession(profile=profile)
@@ -63,5 +64,5 @@
             session_data["node"] = CMD_UPDATE_SUBSCRIBTION
             data = {"session_id": session_id}
             return self.host.plugins["XEP-0050"]._requestingEntity(data, profile)
-            
+
         return d.addCallback(got_services)