diff --git a/doc/contributing/maintaining-openssl.md b/doc/contributing/maintaining-openssl.md
index d8e93b89a48f10..6dd0cd2f1e5d5f 100644
--- a/doc/contributing/maintaining-openssl.md
+++ b/doc/contributing/maintaining-openssl.md
@@ -7,6 +7,8 @@ currently need to generate four PRs as follows:
 
 * a PR for `main` which is generated following the instructions
   below for OpenSSL 3.x.x.
+* a PR for 18.x following the instructions in the v18.x-staging version
+  of this guide.
 * a PR for 16.x following the instructions in the v16.x-staging version
   of this guide.
 * a PR for 14.x following the instructions in the v14.x-staging version