--- a/src/pyams_content/shared/site/interfaces.py	Fri Nov 16 09:24:00 2018 +0100
+++ b/src/pyams_content/shared/site/interfaces.py	Fri Nov 16 11:22:33 2018 +0100
@@ -167,6 +167,11 @@
                                                        "original title will be used if none is specified"),
                                          required=False)
 
+    navigation_header = I18nTextField(title=_("Navigation header"),
+                                      description=_("Alternate content's header displayed in navigation pages; "
+                                                    "original header will be used if none is specified"),
+                                      required=False)
+
     visible = Bool(title=_("Visible?"),
                    description=_("If 'no', link is not visible"),
                    required=True,