diff --git a/doc/Makefile b/doc/Makefile
index b1ad3334e..ca8013050 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -11,7 +11,8 @@ PAPEROPT_letter  = -D latex_paper_size=letter
 ALLSPHINXOPTS = -d _build/doctrees $(PAPEROPT_$(PAPER)) \
                 $(SPHINXOPTS) $(O) .
 
-.PHONY: help clean html dirhtml pickle htmlhelp qthelp latex changes linkcheck doctest man
+.PHONY: help clean html dirhtml pickle htmlhelp qthelp latex changes linkcheck \
+        doctest man devhelp epub json latexpdf singlehtml text
 
 help:
 	@echo "Please use \`make <target>' where <target> is one of"