diff --git a/plantStructC4.adoc b/plantStructC4.adoc
index 71d7aae..040bb96 100644
--- a/plantStructC4.adoc
+++ b/plantStructC4.adoc
@@ -44,3 +44,5 @@ https://forum.plantuml.net/5852/data-flow-diagrams
  
 https://github.com/structurizr/cli/blob/master/docs/getting-started.md
   <= Structurizr getting started page +
+https://github.com/structurizr/dsl/blob/master/docs/language-reference.md
+ <= Structurizr DSL (Domain Specific Language) Reference Manual