diff --git a/docs/03-api-styles/01-duration-terms.adoc b/docs/03-api-styles/01-duration-terms.adoc
index a871f04..3aecff7 100644
--- a/docs/03-api-styles/01-duration-terms.adoc
+++ b/docs/03-api-styles/01-duration-terms.adoc
@@ -11,7 +11,7 @@ RPC, Ressource, Hypermedia, Query, Events, asynchrone Kommunikation, gRPC, HTTP
 
 // tag::EN[]
 |===
-| Duration: XXX min | Practice time: XXX min
+| Duration: 60 min | Practice time: 30 min
 |===
 
 === Terms and Principles