diff --git a/doc/Makefile b/doc/Makefile
index 82c73b1..6dbf8ad 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -6,7 +6,7 @@ html:
 	@echo Generating epydoc html code documentation.
 	@echo See epydoc-html.log for epydoc log.
 	@echo ----------------
-	epydoc --html -o html/ ../fluents ../workflows 2> epydoc-html.log
+	epydoc --html --inheritance listed -o html/ ../fluents 2> epydoc-html.log
 
 clean:
 	-rm -rf html