diff --git a/plugins/kolab_activesync/kolab_activesync_ui.php b/plugins/kolab_activesync/kolab_activesync_ui.php
index 636f97c6..acd66506 100644
--- a/plugins/kolab_activesync/kolab_activesync_ui.php
+++ b/plugins/kolab_activesync/kolab_activesync_ui.php
@@ -157,7 +157,7 @@ class kolab_activesync_ui
     {
         $alarms = ($attrib['type'] == 'event' || $attrib['type'] == 'task');
 
-        $table = new html_table(array('cellspacing' => 0));
+        $table = new html_table(array('cellspacing' => 0, 'class' => 'table-striped'));
         $table->add_header(array(
                 'class'    => 'subscription checkbox-cell',
                 'title'    => $this->plugin->gettext('synchronize'),
diff --git a/plugins/kolab_delegation/kolab_delegation.php b/plugins/kolab_delegation/kolab_delegation.php
index 46638aa7..a58f1b92 100644
--- a/plugins/kolab_delegation/kolab_delegation.php
+++ b/plugins/kolab_delegation/kolab_delegation.php
@@ -553,7 +553,7 @@ class kolab_delegation extends rcube_plugin
         $read_ico  = $attrib['readicon'] ? html::img(array('src' =>  $path . $attrib['readicon'], 'title' => $this->gettext('read'))) : '';
         $write_ico = $attrib['writeicon'] ? html::img(array('src' => $path . $attrib['writeicon'], 'title' => $this->gettext('write'))) : '';
 
-        $table = new html_table(array('cellspacing' => 0));
+        $table = new html_table(array('cellspacing' => 0, 'class' => 'table-striped'));
         $table->add_header(array('class' => 'read checkbox-cell', 'title' => $this->gettext('read'), 'tabindex' => 0), $read_ico);
         $table->add_header(array('class' => 'write checkbox-cell', 'title' => $this->gettext('write'), 'tabindex' => 0), $write_ico);
         $table->add_header('foldername', $this->rc->gettext('folder'));