diff -r e178b131906a -r ddbebce94665 mercurial/sparse.py
--- a/mercurial/sparse.py	Sun Feb 10 21:33:21 2019 -0800
+++ b/mercurial/sparse.py	Sun Feb 10 14:35:36 2019 -0800
@@ -264,7 +264,7 @@
     """Returns a matcher that returns true for any of the forced includes
     before testing against the actual matcher."""
     kindpats = [('path', include, '') for include in includes]
-    includematcher = matchmod.includematcher('', '', kindpats)
+    includematcher = matchmod.includematcher('', kindpats)
     return matchmod.unionmatcher([includematcher, matcher])
 
 def matcher(repo, revs=None, includetemp=True):