diff --git a/docs/specs/safe-bag.rst b/docs/specs/safe-bag.rst
index 23e93cb..6cc6773 100644
--- a/docs/specs/safe-bag.rst
+++ b/docs/specs/safe-bag.rst
@@ -4,8 +4,8 @@
 Sometimes, one may need to export credentials (e.g., certificate and private key) from
 one machine, and import them into another machine.  This requires a secured container for
 sensitive information.  We define **SafeBag**, which contains both an NDN certificate
-(:doc:`version 2.0 <certificate-format>`) and the corresponding private
-key, which is encrypted in `PKCS #8 format <https://tools.ietf.org/html/rfc5208>`_.
+(:doc:`version 2.0 <certificate>`) and the corresponding private key, which is encrypted
+in `PKCS #8 format <https://tools.ietf.org/html/rfc5208>`_.
 
 The format of **SafeBag** is defined as:
 
@@ -20,11 +20,11 @@
 
 All TLV-TYPE numbers are application specific:
 
-+---------------------------------------------+-------------------+----------------+
-| TLV-TYPE                                    | Assigned number   | Assigned number|
-|                                             | (decimal)         | (hexadecimal)  |
-+=============================================+===================+================+
-| SafeBag                                     | 128               | 0x80           |
-+---------------------------------------------+-------------------+----------------+
-| EncryptedKeyBag                             | 129               | 0x81           |
-+---------------------------------------------+-------------------+----------------+
++---------------------------------------------+------------------+-----------------+
+| Type                                        | Assigned number  | Assigned number |
+|                                             | (decimal)        | (hexadecimal)   |
++=============================================+==================+=================+
+| SafeBag                                     | 128              | 0x80            |
++---------------------------------------------+------------------+-----------------+
+| EncryptedKeyBag                             | 129              | 0x81            |
++---------------------------------------------+------------------+-----------------+