diff --git a/security/rust-ring/Makefile b/security/rust-ring/Makefile
index 7b041715640..6ec73d33fc3 100644
--- a/security/rust-ring/Makefile
+++ b/security/rust-ring/Makefile
@@ -4,7 +4,7 @@ COMMENT =		ring crate source patched for x-only assembly
 VERSION =		0.16.20
 DISTNAME =		ring-${VERSION}
 PKGNAME =		rust-${DISTNAME}
-REVISION =		8
+REVISION =		9
 
 SUBST_VARS =		VERSION
 
diff --git a/security/rust-ring/pkg/DESCR b/security/rust-ring/pkg/DESCR
index b1564166683..c0cfac0445a 100644
--- a/security/rust-ring/pkg/DESCR
+++ b/security/rust-ring/pkg/DESCR
@@ -1,2 +1,3 @@
 Bundles the source of the ring crate patched to work with OpenBSD's
-execute only policy.
+execute only policy. Use this as a BUILD_DEPENDS for ports depending
+on ring 0.16. It is not needed for ring >= 0.17.