diff -r 40fd1ef4e4c1 -r 86fe85364811 mercurial/rcutil.py
--- a/mercurial/rcutil.py	Fri Nov 29 17:30:57 2019 +0100
+++ b/mercurial/rcutil.py	Wed Dec 11 11:22:37 2019 -0800
@@ -63,11 +63,8 @@
 
 def defaultrcpath():
     '''return rc paths in defaultrc'''
-    path = []
     defaultpath = os.path.join(resourceutil.datapath, b'defaultrc')
-    if os.path.isdir(defaultpath):
-        path = _expandrcpath(defaultpath)
-    return path
+    return _expandrcpath(defaultpath)
 
 
 def rccomponents():