diff --git a/cps.module b/cps.module
index 011b200..8e85965 100644
--- a/cps.module
+++ b/cps.module
@@ -152,6 +152,8 @@ function cps_entity_info() {
     'access callback' => 'cps_changeset_access',
     'save callback' => 'cps_changeset_save',
     'module' => 'cps',
+    // Modified property name for entity_modified module.
+    'modified property name' => 'changed',
   );
 
   return $info;