diff --git a/setup.py b/setup.py
index 7b407c09..a98395e2 100644
--- a/setup.py
+++ b/setup.py
@@ -64,6 +64,7 @@ def read(*rnames):
         "plone.namedfile",
         "plone.protect",
         "plone.registry",
+        "plone.schema",
         "plone.uuid",
         "plone.z3cform",
         "Products.GenericSetup",