diff --git a/doc/configuration.txt b/doc/configuration.txt
index d288758..3d019e9 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -10681,6 +10681,11 @@
   verification of the client certificate. If no error is encountered, 0 is
   returned.
 
+ssl_c_der : binary
+  Returns the DER formatted certificate presented by the client when the
+  incoming connection was made over an SSL/TLS transport layer. When used for
+  an ACL, the value(s) to match against can be passed in hexadecimal form.
+
 ssl_c_err : integer
   When the incoming connection was made over an SSL/TLS transport layer,
   returns the ID of the first error detected during verification at depth 0, or
@@ -10756,6 +10761,11 @@
   Returns the version of the certificate presented by the client when the
   incoming connection was made over an SSL/TLS transport layer.
 
+ssl_f_der : binary
+  Returns the DER formatted certificate presented by the frontend when the
+  incoming connection was made over an SSL/TLS transport layer. When used for
+  an ACL, the value(s) to match against can be passed in hexadecimal form.
+
 ssl_f_i_dn([<entry>[,<occ>]]) : string
   When the incoming connection was made over an SSL/TLS transport layer,
   returns the full distinguished name of the issuer of the certificate