diff --git a/Documentation/security/00-INDEX b/Documentation/security/00-INDEX
index eeed1de546d4d178a8d6c8e91da1012b71d9c970..414235c1fcfcdd3f4a8ca191df7edf7cf21049ad 100644
--- a/Documentation/security/00-INDEX
+++ b/Documentation/security/00-INDEX
@@ -12,6 +12,8 @@ apparmor.txt
 	- documentation on the AppArmor security extension.
 credentials.txt
 	- documentation about credentials in Linux.
+keys-ecryptfs.txt
+	- description of the encryption keys for the ecryptfs filesystem.
 keys-request-key.txt
 	- description of the kernel key request service.
 keys-trusted-encrypted.txt