diff --git a/setup.py b/setup.py
index e3092b0..2485b2c 100644
--- a/setup.py
+++ b/setup.py
@@ -62,6 +62,7 @@
         "zope.schema",
         "zope.viewlet",
         "persistent",
+        "plone.app.layout",
         "plone.base",
         "plone.dexterity",
         "plone.registry",