diff --git a/adoc.adoc b/adoc.adoc
index e39473c..b5770b8 100644
--- a/adoc.adoc
+++ b/adoc.adoc
@@ -3,6 +3,7 @@
 :idprefix:
 :idseparator: -
 :nofooter:
+:stem:
 :sectanchors:
 :sectlinks:
 :sectnumlevels: 6
@@ -47,8 +48,6 @@ link::adoc.adoc
 
 link:adoc.adoc[]
 
-link::adoc.adoc[]
-
 link:++a b++[link with spaces]
 
 == Lists
@@ -162,10 +161,18 @@ asciimath <<math-stem-block-test>>:
 sqrt(4) = 2
 ++++
 
-latexmath <<math-stem-block-test>>:
+latexmath <<math-latexmath-block-test>>:
 
 [latexmath,id=math-latexmath-block-test]
 .Latexmath block test
 ++++
 \sqrt{4} = 2
 ++++
+
+== xref
+
+TODO xref across documents:
+
+....
+xref:adoc2.adoc/my-h2-1[]
+....
diff --git a/adoc2.adoc b/adoc2.adoc
new file mode 100644
index 00000000..154438c
--- /dev/null
+++ b/adoc2.adoc
@@ -0,0 +1,3 @@
+= Asciidoctor test 2
+
+== my h2 1
diff --git a/other-test-repos/README.md b/other-test-repos/README.md
index b1fbbc6..951ca98 100644
--- a/other-test-repos/README.md
+++ b/other-test-repos/README.md
@@ -8,6 +8,7 @@ Tests that are very large will not be included here to keep this repository smal
 - <https://github.com/cirosantilli/test-diff-many-files>
 - <https://github.com/cirosantilli/test-pr-many-commits>
 - <https://github.com/cirosantilli/test-many-commits-1m> [many-commits.py](many-commits.py)
+- <https://github.com/cirosantilli/test-asciidoc-large-variable>
 
 There are also some tests that could not be included here conveniently: