diff --git a/net-analyzer/openbsd-netcat/files/openbsd-netcat-1.190-darwin13.patch b/net-analyzer/openbsd-netcat/files/openbsd-netcat-1.190-darwin13.patch
index 5a643a2945f32..216b8c207922a 100644
--- a/net-analyzer/openbsd-netcat/files/openbsd-netcat-1.190-darwin13.patch
+++ b/net-analyzer/openbsd-netcat/files/openbsd-netcat-1.190-darwin13.patch
@@ -1,4 +1,8 @@
-strtonum isn't available on <Darwin-10.15
+strtonum isn't available on <Darwin-11
+
+however, it is in the header files on systems like 10.15 with an
+availability clause, so don't define strtonum static such that it
+matches the prototype from stdlib.h
 
 diff --git a/netcat.c b/netcat.c
 index a0fb51b..bbb5dd1 100644
@@ -14,7 +18,7 @@ index a0fb51b..bbb5dd1 100644
 +	"invalid"
 +};
 +
-+static long long
++long long
 +strtonum(
 +		const char *nptr,
 +		long long minval,
diff --git a/net-analyzer/openbsd-netcat/openbsd-netcat-1.195-r1.ebuild b/net-analyzer/openbsd-netcat/openbsd-netcat-1.195-r1.ebuild
index 6fd1b2b6f9064..b7288f531c864 100644
--- a/net-analyzer/openbsd-netcat/openbsd-netcat-1.195-r1.ebuild
+++ b/net-analyzer/openbsd-netcat/openbsd-netcat-1.195-r1.ebuild
@@ -31,7 +31,7 @@ src_prepare() {
 	if [[ ${CHOST} == *-darwin* ]] ; then
 		# this undoes some of the Debian/Linux changes
 		eapply "${FILESDIR}"/${PN}-1.195-darwin.patch
-		if [[ ${CHOST##*-darwin} -lt 19 ]] ; then
+		if [[ ${CHOST##*-darwin} -lt 20 ]] ; then
 			eapply "${FILESDIR}"/${PN}-1.190-darwin13.patch
 		fi
 	fi