diff --git a/doc/Makefile.am b/doc/Makefile.am
index 338f077..7e1fbe9 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -41,12 +41,16 @@ endif
 	
 
 %.html: %.txt link_doc
+if HAVE_ASCIIDOC
 	./resolve-asciidoc-refs.py $< > asciidoc.tmp
 	asciidoc $(ASCIIDOCOPTS) -o $@ asciidoc.tmp
 if LINK_DOC
 	./doxygen-link.py libnl.dict $@ > asciidoc.tmp
 	mv asciidoc.tmp $@
 endif
+else
+	@echo "Warning: Building of asciidoc files is disabled, check autoconf logs"
+endif
 
 asciidoc: core.html route.html index.html