diff --git a/news/187.bug b/news/187.bug
new file mode 100644
index 0000000..0fe8b1f
--- /dev/null
+++ b/news/187.bug
@@ -0,0 +1 @@
+Fix a memory leak as reported in https://github.com/plone/Products.CMFPlone/issues/3829, changing interface declaration type as suggested by @d-maurer in https://github.com/plone/plone.dexterity/issues/186 [mamico]
diff --git a/plone/dexterity/content.py b/plone/dexterity/content.py
index 18e0faa..593b70c 100644
--- a/plone/dexterity/content.py
+++ b/plone/dexterity/content.py
@@ -42,8 +42,8 @@
 from zope.interface import implementer
 from zope.interface.declarations import getObjectSpecification
 from zope.interface.declarations import implementedBy
-from zope.interface.declarations import Implements
 from zope.interface.declarations import ObjectSpecificationDescriptor
+from zope.interface.declarations import Provides
 from zope.interface.interface import Method
 from zope.schema.interfaces import IContextAwareDefaultFactory
 from zope.security.interfaces import IPermission
@@ -193,7 +193,7 @@ def __get__(self, inst, cls=None):
             return spec
 
         dynamically_provided.append(spec)
-        all_spec = Implements(*dynamically_provided)
+        all_spec = Provides(cls, *dynamically_provided)
         inst._v__providedBy__ = updated + (all_spec,)
 
         return all_spec