diff --git a/nltk/test/Makefile b/nltk/test/Makefile
index 8c5424facb..d617b43c57 100644
--- a/nltk/test/Makefile
+++ b/nltk/test/Makefile
@@ -4,7 +4,9 @@ TESTS = $(wildcard *.doctest)
 
 ERRS := $(TESTS:.doctest=.errs)
 
-HTML = $(TESTS:.doctest=.html)
+HTML = $(TESTS:.doctest=.html) $(IPYNB:.ipynb=.html)
+
+IPYNB = $(wildcard *.ipynb)
 
 .doctest.errs:
 	python ./runtests.py $< > $@
@@ -12,6 +14,9 @@ HTML = $(TESTS:.doctest=.html)
 .doctest.html:
 	rst2html.py $< > $@
 
+%.html: %.ipynb
+	ipython nbconvert $<
+
 all: $(ERRS)
 
 html: $(HTML)