--- a/sat/plugins/plugin_exp_invitation_file.py	Tue Jun 09 06:23:37 2020 +0200
+++ b/sat/plugins/plugin_exp_invitation_file.py	Tue Jun 09 06:25:20 2020 +0200
@@ -21,6 +21,7 @@
 from sat.core.constants import Const as C
 from sat.core.log import getLogger
 from sat.tools.common import data_format
+from twisted.internet import defer
 from twisted.words.protocols.jabber import jid
 
 log = getLogger(__name__)
@@ -70,7 +71,7 @@
         if repos_type == "files":
             type_human = _("file sharing")
         elif repos_type == "photos":
-            type_human = _("photos album")
+            type_human = _("photo album")
         else:
             log.warning("Unknown repository type: {repos_type}".format(
                 repos_type=repos_type))
@@ -81,5 +82,8 @@
             'with namespace "{namespace}" at path [{path}]').format(
             profile=client.profile, type_human=type_human, namespace=namespace, path=path)
             )
-        return self.host.plugins['LIST_INTEREST'].registerFileSharing(
-            client, service, repos_type, namespace, path, name, extra)
+        return defer.ensureDeferred(
+            self.host.plugins['LIST_INTEREST'].registerFileSharing(
+                client, service, repos_type, namespace, path, name, extra
+            )
+        )