diff --git a/Makefile b/Makefile
index de2c0d24..11173e3d 100644
--- a/Makefile
+++ b/Makefile
@@ -58,10 +58,11 @@ checkall:
 	cd tests && $(MAKE) checkall
 	cd example && $(MAKE) all
 
-html:	doc
-doc:	README.md doc/depend.png
+html:	README.md
 	markdown < README.md > README.html
 
+doc:	html doc/depend.png
+
 clean:
 	cd tests && $(MAKE) clean
 	cd example && $(MAKE) clean