diff --git a/sao/src/session.js b/sao/src/session.js
index 8f227495ff..a5377822f6 100644
--- a/sao/src/session.js
+++ b/sao/src/session.js
@@ -298,7 +298,7 @@
         };
 
         var login = function() {
-            var login = dialog.login_input.val();
+            var login = dialog.login_input.val().trim();
             var database = database || dialog.database_select.val() ||
                 dialog.database_input.val();
             dialog.modal.find('.has-error').removeClass('has-error');
diff --git a/tryton/tryton/gui/window/dblogin.py b/tryton/tryton/gui/window/dblogin.py
index 186b3db92a..4eef1e92ca 100644
--- a/tryton/tryton/gui/window/dblogin.py
+++ b/tryton/tryton/gui/window/dblogin.py
@@ -703,7 +703,7 @@ class DBLogin(object):
             CONFIG['login.db'] = database
             CONFIG['login.expanded'] = self.expander.props.expanded
             if response == Gtk.ResponseType.OK:
-                authentication = self.entry_login.get_text()
+                authentication = self.entry_login.get_text().strip()
                 CONFIG['login.login'] = authentication
                 CONFIG['login.service'] = ''
             else: