diff --git a/content/index.adoc b/content/index.adoc
index f1255eab..b9318af3 100644
--- a/content/index.adoc
+++ b/content/index.adoc
@@ -33,8 +33,8 @@ include::./general_docs/introduction.adoc[leveloffset=+1]
 include::./general_docs/scope.adoc[leveloffset=+1]
 include::./general_docs/normative_references.adoc[leveloffset=+2]
 include::./general_docs/abbreviations.adoc[leveloffset=+3]
-include::./general_docs/backward_compatibility.adoc[leveloffset=+3]
-include::./terms_and_definitions/terms_and_definitions.adoc[leveloffset=+1]
+include::./general_docs/backward_compatibility.adoc[leveloffset=+4]
+include::./terms_and_definitions/terms_and_definitions.adoc[leveloffset=+5]
 include::./use_cases/use_cases.adoc[leveloffset=+1]
 include::./geometry/geometry-index.adoc[leveloffset=+1]
 include::./material/general-structure-index.adoc[leveloffset=+1]