diff --git a/Makefile b/Makefile
index d2cea8527..b5bd9085c 100644
--- a/Makefile
+++ b/Makefile
@@ -44,7 +44,7 @@ CORE_HASH=	${CORE_COMMIT:C/^.*-//1}
 CORE_ABI?=	17.1
 CORE_ARCH?=	${ARCH}
 CORE_BIND?=	911
-CORE_OPENVPN?=	23
+CORE_OPENVPN?=	# empty for version 2.4
 CORE_PHP?=	70
 CORE_PY?=	27