diff --git a/admin_manual/configuration/encryption_configuration.rst b/admin_manual/configuration/encryption_configuration.rst
index 92a42990e..640d272ff 100644
--- a/admin_manual/configuration/encryption_configuration.rst
+++ b/admin_manual/configuration/encryption_configuration.rst
@@ -10,7 +10,8 @@ retrieval, decrypted before serving them to you and anyone you have shared them
 with.
 
 .. note:: Encrypting files increases their size by roughly 35%, so you must take this into 
-   account when you are provisioning storage and setting storage quotas.
+   account when you are provisioning storage and setting storage quotas. User's quotas are 
+   based on the unencrypted file size, and not the encrypted file size.
 
 When files on external storage are encrypted in ownCloud, you cannot share them 
 directly from the external storage services, but only through ownCloud sharing