diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -3012,6 +3012,7 @@ def createrepository(ui, path, createopt
     hgvfs.makedir(notindexed=True)
     if 'sharedrepo' not in createopts:
         hgvfs.mkdir(b'cache')
+    hgvfs.mkdir(b'wcache')
 
     if b'store' in requirements and 'sharedrepo' not in createopts:
         hgvfs.mkdir(b'store')
diff --git a/tests/test-bundle.t b/tests/test-bundle.t
--- a/tests/test-bundle.t
+++ b/tests/test-bundle.t
@@ -212,6 +212,7 @@ Make sure bundlerepo doesn't leak tempfi
   cache
   requires
   store
+  wcache
 
 Pull ../full.hg into empty (with hook)
 
diff --git a/tests/test-empty.t b/tests/test-empty.t
--- a/tests/test-empty.t
+++ b/tests/test-empty.t
@@ -23,6 +23,7 @@ Check the basic files created:
   cache
   requires
   store
+  wcache
 
 Should be empty:
 
diff --git a/tests/test-inherit-mode.t b/tests/test-inherit-mode.t
--- a/tests/test-inherit-mode.t
+++ b/tests/test-inherit-mode.t
@@ -42,7 +42,7 @@ just in case somebody has a strange $TMP
   $ hg init repo
   $ cd repo
 
-  $ chmod 0770 .hg/store .hg/cache
+  $ chmod 0770 .hg/store .hg/cache .hg/wcache
 
 before commit
 store can be written by the group, other files cannot
@@ -54,6 +54,7 @@ store is setgid
   00770 ./.hg/cache/
   00600 ./.hg/requires
   00770 ./.hg/store/
+  00770 ./.hg/wcache/
 
   $ mkdir dir
   $ touch foo dir/bar
@@ -120,6 +121,7 @@ group can write everything
   00770 ../push/.hg/cache/
   00660 ../push/.hg/requires
   00770 ../push/.hg/store/
+  00770 ../push/.hg/wcache/
 
   $ umask 077
   $ hg -q push ../push
@@ -155,6 +157,7 @@ group can still write everything
   00660 ../push/.hg/undo.branch
   00660 ../push/.hg/undo.desc
   00660 ../push/.hg/undo.dirstate
+  00770 ../push/.hg/wcache/
 
 
 Test that we don't lose the setgid bit when we call chmod.
diff --git a/tests/test-subrepo.t b/tests/test-subrepo.t
--- a/tests/test-subrepo.t
+++ b/tests/test-subrepo.t
@@ -1242,6 +1242,7 @@ Check that share works with subrepo
   ../shared/subrepo-1/.hg/hgrc
   ../shared/subrepo-1/.hg/requires
   ../shared/subrepo-1/.hg/sharedpath
+  ../shared/subrepo-1/.hg/wcache
   ../shared/subrepo-2
   ../shared/subrepo-2/.hg
   ../shared/subrepo-2/.hg/branch