diff --git a/po/de.po b/po/de.po
index d86358644..d472b72e3 100644
--- a/po/de.po
+++ b/po/de.po
@@ -7544,13 +7544,23 @@ msgstr ""
 
 #: ../src/dialogs.py:3477
 #, python-format
-msgid "Added  %s contacts"
-msgstr "%s Kontakte hinzugefügt"
+msgid "Added %d contacts"
+msgstr "%d Kontakte hinzugefügt"
+
+#: ../src/dialogs.py:3477
+#, python-format
+msgid "Added %d contact"
+msgstr "%d Kontakt hinzugefügt"
 
 #: ../src/dialogs.py:3514
 #, python-format
-msgid "Removed  %s contacts"
-msgstr "%s Kontakte entfernt"
+msgid "Removed %d contacts"
+msgstr "%d Kontakte entfernt"
+
+#: ../src/dialogs.py:3514
+#, python-format
+msgid "Removed %d contact"
+msgstr "%d Kontakt entfernt"
 
 #: ../src/dialogs.py:3554 ../src/dialogs.py:3731
 #, python-format
diff --git a/src/dialogs.py b/src/dialogs.py
index f947bacba..2cf0e66f0 100644
--- a/src/dialogs.py
+++ b/src/dialogs.py
@@ -57,6 +57,7 @@ from advanced_configuration_window import AdvancedConfigurationWindow
 
 from common import gajim
 from common import helpers
+from common import i18n
 from common import dataforms
 from common.exceptions import GajimGeneralException
 
@@ -3558,7 +3559,8 @@ class RosterItemExchangeWindow:
                             self.account, groups=groups, nickname=model[iter_][2],
                             auto_auth=True)
                 iter_ = model.iter_next(iter_)
-            InformationDialog(_('Added  %s contacts') % str(a))
+            InformationDialog(i18n.ngettext('Added %d contact',
+                'Added %d contacts', a, a, a))
         elif self.action == 'modify':
             a = 0
             while iter_:
@@ -3595,7 +3597,8 @@ class RosterItemExchangeWindow:
                     gajim.interface.roster.remove_contact(jid, self.account)
                     gajim.contacts.remove_jid(self.account, jid)
                 iter_ = model.iter_next(iter_)
-            InformationDialog(_('Removed  %s contacts') % str(a))
+            InformationDialog(i18n.ngettext('Removed %d contact',
+                'Removed %d contacts', a, a, a))
         self.window.destroy()
 
     def on_cancel_button_clicked(self, widget):