diff --git a/Documentation/Makefile b/Documentation/Makefile
index 471bb29725..d5ad85459e 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -181,6 +181,7 @@ ASCIIDOC = asciidoctor
 ASCIIDOC_CONF =
 ASCIIDOC_HTML = xhtml5
 ASCIIDOC_DOCBOOK = docbook45
+ASCIIDOC_EXTRA += -acompat-mode
 ASCIIDOC_EXTRA += -I. -rasciidoctor-extensions
 ASCIIDOC_EXTRA += -alitdd='&\#x2d;&\#x2d;'
 DBLATEX_COMMON =