diff --git a/Makefile b/Makefile
index a0ca9745..10b90ea9 100644
--- a/Makefile
+++ b/Makefile
@@ -9,5 +9,8 @@ clean:
 test:
 	nosetests skimage
 
+doctest:
+	nosetests --with-doctest skimage
+
 coverage:
 	nosetests skimage --with-coverage --cover-package=skimage