diff --git a/data/gui/manage_sounds_window.ui b/data/gui/manage_sounds_window.ui
index 710ac6606..b1243a1eb 100644
--- a/data/gui/manage_sounds_window.ui
+++ b/data/gui/manage_sounds_window.ui
@@ -6,6 +6,7 @@
     <property name="width_request">400</property>
     <property name="height_request">350</property>
     <property name="border_width">6</property>
+    <property name="title" translatable="yes">Manage sounds</property>
     <property name="type_hint">dialog</property>
     <signal name="delete_event" handler="on_manage_sounds_window_delete_event"/>
     <child>
diff --git a/src/dialogs.py b/src/dialogs.py
index 09c13b670..197f347f6 100644
--- a/src/dialogs.py
+++ b/src/dialogs.py
@@ -5273,6 +5273,7 @@ class VoIPCallReceivedDialog(object):
 
 class CertificatDialog(InformationDialog):
     def __init__(self, parent, account, cert):
+        self.set_title(_('Certificate for account %s') % account)
         issuer = cert.get_issuer()
         subject = cert.get_subject()
         InformationDialog.__init__(self,