diff --git a/hgext/lfs/TODO.rst b/hgext/lfs/TODO.rst
--- a/hgext/lfs/TODO.rst
+++ b/hgext/lfs/TODO.rst
@@ -38,9 +38,6 @@
 
    * `hg diff` is similar, and probably shouldn't see the pointer file
 
-#. `Fix https multiplexing, and re-enable workers
-   <https://www.mercurial-scm.org/pipermail/mercurial-devel/2018-January/109916.html>`_.
-
 #. Show to-be-applied rules with `hg files -r 'wdir()' 'set:lfs()'`
 
    * `debugignore` can show file + line number, so a dedicated command could be
diff --git a/hgext/lfs/__init__.py b/hgext/lfs/__init__.py
--- a/hgext/lfs/__init__.py
+++ b/hgext/lfs/__init__.py
@@ -181,7 +181,7 @@
     b'experimental', b'lfs.disableusercache', default=False,
 )
 eh.configitem(
-    b'experimental', b'lfs.worker-enable', default=False,
+    b'experimental', b'lfs.worker-enable', default=True,
 )
 
 eh.configitem(
diff --git a/tests/test-lfs-serve-access.t b/tests/test-lfs-serve-access.t
--- a/tests/test-lfs-serve-access.t
+++ b/tests/test-lfs-serve-access.t
@@ -17,6 +17,7 @@
   $ hg init server
   $ hg --config "lfs.usercache=$TESTTMP/servercache" \
   >    --config experimental.lfs.serve=False -R server serve -d \
+  >    --config experimental.lfs.worker-enable=False \
   >    -p $HGPORT --pid-file=hg.pid -A $TESTTMP/access.log -E $TESTTMP/errors.log
   $ cat hg.pid >> $DAEMON_PIDS
 
diff --git a/tests/test-lfs-serve.t b/tests/test-lfs-serve.t
--- a/tests/test-lfs-serve.t
+++ b/tests/test-lfs-serve.t
@@ -65,6 +65,7 @@
   > debugprocessors = $TESTTMP/debugprocessors.py
   > [experimental]
   > lfs.disableusercache = True
+  > lfs.worker-enable = False
   > [lfs]
   > threshold=10
   > [web]
diff --git a/tests/test-lfs-test-server.t b/tests/test-lfs-test-server.t
--- a/tests/test-lfs-test-server.t
+++ b/tests/test-lfs-test-server.t
@@ -40,6 +40,8 @@
 #endif
 
   $ cat >> $HGRCPATH <<EOF
+  > [experimental]
+  > lfs.worker-enable = False
   > [extensions]
   > lfs=
   > [lfs]