diff --git a/docs/src/main/asciidoc/appendix.adoc b/docs/src/main/asciidoc/appendix.adoc
index 5dee4c42..7540549e 100644
--- a/docs/src/main/asciidoc/appendix.adoc
+++ b/docs/src/main/asciidoc/appendix.adoc
@@ -6,4 +6,7 @@ include::appendix-task-repository-schema.adoc[]
 
 include::appendix-building-the-documentation.adoc[]
 
+ifndef::train-docs[]
 include::_observability.adoc[]
+endif::[]
+