diff --git a/hgext3rd/pushrebase.py b/hgext3rd/pushrebase.py
--- a/hgext3rd/pushrebase.py
+++ b/hgext3rd/pushrebase.py
@@ -63,6 +63,11 @@
 cmdtable = {}
 command = registrar.command(cmdtable)
 
+configtable = {}
+configitem = registrar.configitem(configtable)
+
+configitem('pushrebase', 'blocknonpushrebase', default=False)
+
 rebaseparttype = 'b2x:rebase'
 rebasepackparttype = 'b2x:rebasepackpart'
 commonheadsparttype = 'b2x:commonheads'
diff --git a/remotefilelog/__init__.py b/remotefilelog/__init__.py
--- a/remotefilelog/__init__.py
+++ b/remotefilelog/__init__.py
@@ -80,6 +80,13 @@
 
 cmdtable = {}
 command = registrar.command(cmdtable)
+
+configtable = {}
+configitem = registrar.configitem(configtable)
+
+configitem('remotefilelog', 'servercachepath', default=None)
+configitem('remotefilelog', 'server', default=None)
+
 testedwith = 'ships-with-fb-hgext'
 
 repoclass = localrepo.localrepository
diff --git a/treemanifest/__init__.py b/treemanifest/__init__.py
--- a/treemanifest/__init__.py
+++ b/treemanifest/__init__.py
@@ -120,6 +120,12 @@
 cmdtable = {}
 command = registrar.command(cmdtable)
 
+configtable = {}
+configitem = registrar.configitem(configtable)
+
+configitem('treemanifest', 'sendtrees', default=False)
+configitem('treemanifest', 'server', default=False)
+
 PACK_CATEGORY='manifests'
 
 TREEGROUP_PARTTYPE = 'b2x:treegroup'