diff --git a/src/memory/params.py b/src/memory/params.py
index 52a812aa..43fc277b 100644
--- a/src/memory/params.py
+++ b/src/memory/params.py
@@ -191,7 +191,7 @@ class Params(object):
         elif return_profile_keys and profile_key in ["@ALL@"]:
             return profile_key # this value must be managed by the caller
         if not self.storage.hasProfile(profile_key):
-            log.error(_('Trying to access an unknown profile'))
+            log.error(_('Trying to access an unknown profile (%s)') % profile_key)
             return "" # FIXME: raise exceptions.ProfileUnknownError here (must be well checked, this method is used in lot of places)
         return profile_key
 
diff --git a/src/plugins/plugin_misc_account.py b/src/plugins/plugin_misc_account.py
index 87a5457f..2d116a8b 100755
--- a/src/plugins/plugin_misc_account.py
+++ b/src/plugins/plugin_misc_account.py
@@ -360,6 +360,7 @@ SàT team""" % {'login': login, 'jid': "%s@%s" % (login, self.getConfig('new_acc
         @profile (str): %(doc_profile)s
         """
         password = self._sessions.profileGet(data['session_id'], profile)['new_password']
+        del self._sessions[data['session_id']]
 
         def passwordChanged(result):
             d = self.host.memory.setParam(C.PROFILE_PASS_PATH[1], password, C.PROFILE_PASS_PATH[0], profile_key=profile)
diff --git a/src/plugins/plugin_misc_register_account.py b/src/plugins/plugin_misc_register_account.py
index 3026013f..4a46a0cd 100644
--- a/src/plugins/plugin_misc_register_account.py
+++ b/src/plugins/plugin_misc_register_account.py
@@ -84,7 +84,9 @@ class RegisterAccount(object):
         self.host.memory.setParam("Port", session_data["Port"], "Connection", profile_key=profile)
 
         user = jid.parse(session_data['JabberID'])[0]
-        return self._registerNewAccount(user, session_data["Password"], None, session_data["Server"], profile_key=profile)
+        d = self._registerNewAccount(user, session_data["Password"], None, session_data["Server"], profile_key=profile)
+        del self._sessions[data['session_id']]
+        return d
 
     def _registerNewAccount(self, user, password, email, host, port=5222, profile_key=C.PROF_KEY_NONE):
         """Connect to a server and create a new account using in-band registration.