Status return sitemap

hi guys,

I am working on my sitemap, but i cant get the status return to work, in my items files this works:

Dimmer slider_voorkamer “Voorkamer [%d %%]” { mqtt=">[donge:/eerste/voorkamer/plafond:state:*:default] "}
(only an outgoing message with no return message)

this one doesn’t work (the light doesn’t respond to the silder):

Dimmer slider_voorkamer “Voorkamer [%d %%]” { mqtt=">[donge:/eerste/voorkamer/plafond:command:*:default] ,<[donge:/eerste/voorkamer/plafond/status:state:default] "}

what am I doing wrong?