diff --git a/doc/api/crypto.md b/doc/api/crypto.md
index 1db0e18cb4c0ef..4c100ddbb31fe5 100644
--- a/doc/api/crypto.md
+++ b/doc/api/crypto.md
@@ -3587,7 +3587,7 @@ See the [list of SSL OP Flags][] for details.
 [RFC 5208]: https://www.rfc-editor.org/rfc/rfc5208.txt
 [encoding]: buffer.html#buffer_buffers_and_character_encodings
 [initialization vector]: https://en.wikipedia.org/wiki/Initialization_vector
-[list of SSL OP Flags]: wiki.openssl.org/index.php/List_of_SSL_OP_Flags#Table_of_Options
+[list of SSL OP Flags]: https://wiki.openssl.org/index.php/List_of_SSL_OP_Flags#Table_of_Options
 [safe integers]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isSafeInteger
 [scrypt]: https://en.wikipedia.org/wiki/Scrypt
 [stream]: stream.html