diff --git a/doc/en/Art.xml b/doc/en/ns-Art.xml
similarity index 100%
rename from doc/en/Art.xml
rename to doc/en/ns-Art.xml
diff --git a/doc/en/Gtk.DotNet.xml b/doc/en/ns-Gtk.DotNet.xml
similarity index 100%
rename from doc/en/Gtk.DotNet.xml
rename to doc/en/ns-Gtk.DotNet.xml
diff --git a/doc/en/Vte.xml b/doc/en/ns-Vte.xml
similarity index 100%
rename from doc/en/Vte.xml
rename to doc/en/ns-Vte.xml