diff --git a/ecosystem.cfg b/ecosystem.cfg
index b1dc5f458b..b51bfe2155 100644
--- a/ecosystem.cfg
+++ b/ecosystem.cfg
@@ -96,6 +96,6 @@ exclude +=
 [sources]
 plone.app.dexterity = git ${remotes:plone}/plone.app.dexterity.git pushurl=${remotes:plone_push}/plone.app.dexterity.git
 plone.dexterity = git ${remotes:plone}/plone.dexterity.git pushurl=${remotes:plone_push}/plone.dexterity.git
-plone.directives.form = git ${remotes:plone}/plone.directives.form.git pushurl=${remotes:plone_push}/plone.directives.form.git
+plone.directives.form = git ${remotes:plone}/plone.directives.form.git pushurl=${remotes:plone_push}/plone.directives.form.git branch=1.x
 plone.app.referenceablebehavior = git ${remotes:plone}/plone.app.referenceablebehavior.git pushurl=${remotes:plone_push}/plone.app.referenceablebehavior.form.git
 plone.schemaeditor = git ${remotes:plone}/plone.schemaeditor.git pushurl=${remotes:plone_push}/plone.schemaeditor.git