diff -r f46e7f3b70af -r 46bd31fffccb hgext/largefiles/overrides.py
--- a/hgext/largefiles/overrides.py	Thu Sep 24 00:46:37 2015 -0700
+++ b/hgext/largefiles/overrides.py	Thu Sep 24 00:48:02 2015 -0700
@@ -728,7 +728,7 @@
 
         oldstandins = lfutil.getstandinsstate(repo)
 
-        def overridematch(mctx, pats=[], opts={}, globbed=False,
+        def overridematch(mctx, pats=(), opts={}, globbed=False,
                 default='relpath', badfn=None):
             match = oldmatch(mctx, pats, opts, globbed, default, badfn=badfn)
             m = copy.copy(match)