diff --git a/README.md b/README.md
index 798e6b33..c1974352 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,10 @@ Before installing Islandora the XACML policies located in the policies folder
 should be copied into the Fedora global XACML policies folder. This will allow
 "authenticated users" in Drupal to access Fedora API-M functions.
 
+You will also have to remove some default policies if you want full functionality as well.
+
+Remove deny-purge-datastream-if-active-or-inactive.xml to allow for purging of datastream versions.
+
 CONFIGURATION
 -------------