diff --git a/lib/hx509/cert.c b/lib/hx509/cert.c
index 7d36ace2c..cf0d77a38 100644
--- a/lib/hx509/cert.c
+++ b/lib/hx509/cert.c
@@ -2242,8 +2242,6 @@ hx509_verify_signature(hx509_context context,
  * @ingroup hx509_cert
  */
 
-#define HX509_VHN_F_ALLOW_NO_MATCH 1
-
 int
 hx509_verify_hostname(hx509_context context,
 		      const hx509_cert cert,