--- a/src/pyams_content/root/zmi/sites.py	Wed Sep 19 10:49:26 2018 +0200
+++ b/src/pyams_content/root/zmi/sites.py	Wed Sep 19 10:54:08 2018 +0200
@@ -121,9 +121,10 @@
                 icon_class = 'fa-eye opacity-75'
             else:
                 icon_class = 'fa-eye-slash text-danger opaque'
-            return '<i class="fa fa-fw {icon_class} hint align-base" title="{title}" data-ams-hint-gravity="e"></i>'.format(
-                icon_class=icon_class,
-                title=self.request.localizer.translate(self.icon_hint))
+            return '<i class="fa fa-fw {icon_class} hint align-base" title="{title}" ' \
+                   'data-ams-hint-gravity="e"></i>'.format(
+                    icon_class=icon_class,
+                    title=self.request.localizer.translate(self.icon_hint))
 
 
 @adapter_config(name='oid', context=(ISiteRoot, IPyAMSLayer, SiteTreeTable), provides=IColumn)