diff --git a/specification/README.md b/specification/README.md
index e712c3436243add25f7b63bc7928322dcd7a9b80..5a02dda7e1a6a019503809e8e03bc39e6de99938 100644
--- a/specification/README.md
+++ b/specification/README.md
@@ -33,7 +33,7 @@ Each platform is responsible to handle that requested data, that means for MVP e
   
 ![](https://git.fairkom.net/fairsync/maps/-/raw/master/diagrams/FairSync_Componentmodel.png)
 
-ArchitecturModel für Adapter zu iCal, ?Activity?...
+ArchitecturModel für Adapter zu cardDAV, iCal, ?Activity?...
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 Todo