factor out function to dump crl
diff --git a/doc/api/crypto.rst b/doc/api/crypto.rst
index e2f2bca..95fb4df 100644
--- a/doc/api/crypto.rst
+++ b/doc/api/crypto.rst
@@ -90,6 +90,8 @@
 Certificate revocation lists
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+.. autofunction:: dump_crl
+
 .. py:function:: load_crl(type, buffer)
 
     Load Certificate Revocation List (CRL) data from a string *buffer*.