--- a/tests/test-doctest.py	Fri Mar 17 09:58:49 2017 -0700
+++ b/tests/test-doctest.py	Fri Mar 17 09:19:56 2017 -0700
@@ -23,6 +23,7 @@
 
 testmod('mercurial.changegroup')
 testmod('mercurial.changelog')
+testmod('mercurial.config')
 testmod('mercurial.dagparser', optionflags=doctest.NORMALIZE_WHITESPACE)
 testmod('mercurial.dispatch')
 testmod('mercurial.encoding')