diff --git a/checkouts.cfg b/checkouts.cfg
index efe5d2c..352a15b 100644
--- a/checkouts.cfg
+++ b/checkouts.cfg
@@ -10,3 +10,4 @@ auto-checkout +=
     collective.contact.core
     plone.app.dexterity
     plone.dexterity
+    plone.formwidget.masterselect
diff --git a/sources.cfg b/sources.cfg
index 50b8bce..d63377b 100644
--- a/sources.cfg
+++ b/sources.cfg
@@ -19,3 +19,4 @@ collective.dms.basecontent = git ${remotes:collective}/collective.dms.baseconten
 collective.dms.batchimport = git ${remotes:collective}/collective.dms.batchimport.git pushurl=${remotes:collective_push}/collective.dms.batchimport.git
 collective.dms.mailcontent = git ${remotes:collective}/collective.dms.mailcontent.git pushurl=${remotes:collective_push}/collective.dms.mailcontent.git
 collective.dms.thesaurus = git ${remotes:collective}/collective.dms.thesaurus.git pushurl=${remotes:collective_push}/collective.dms.thesaurus.git
+plone.formwidget.masterselect = git ${remotes:cedricmessiant}/plone.formwidget.masterselect.git pushurl=${remotes:cedricmessiant_push}/plone.formwidget.masterselect.git