Index: production/models/tbx/TBX Configurator,1.0.0.xml
===================================================================
diff -u -r4601 -r4614
--- production/models/tbx/TBX Configurator,1.0.0.xml	(.../TBX Configurator,1.0.0.xml)	(revision 4601)
+++ production/models/tbx/TBX Configurator,1.0.0.xml	(.../TBX Configurator,1.0.0.xml)	(revision 4614)
@@ -7735,7 +7735,7 @@
 	UI.RugHoogte@option("X38")@valid = false;
 else
   	if DATA.Kenmerken.HeeftAfwijkendeRugHoogte then
-		UI.RugHoogte@option("N")@valid = (DATA.Kenmerken.InbouwHoogte in {"N"} );
+		UI.RugHoogte@option("N")@valid = (DATA.Kenmerken.InbouwHoogte in {"N", "M"} );
 		UI.RugHoogte@option("M")@valid = (DATA.Kenmerken.InbouwHoogte in {"M"; "B"; "CM"; "DM"} );
 		UI.RugHoogte@option("K")@valid = (DATA.Kenmerken.InbouwHoogte in {"K"; "DK"} );
 		UI.RugHoogte@option("B")@valid = (DATA.Kenmerken.InbouwHoogte in {"B"; "CM"; "DM"} );