diff --git a/app-misc/screen/screen-4.3.1-r1.ebuild b/app-misc/screen/screen-4.3.1-r1.ebuild
index a4e04686ea9df..4237c22f2915e 100644
--- a/app-misc/screen/screen-4.3.1-r1.ebuild
+++ b/app-misc/screen/screen-4.3.1-r1.ebuild
@@ -54,6 +54,10 @@ src_prepare() {
 		doc/screen.1 \
 		|| die
 
+	if [[ ${CHOST} == *-darwin* ]] ; then
+		sed -i -e '/^#define UTMPOK/s/define/undef/' acconfig.h || die
+	fi
+
 	# reconfigure
 	eautoreconf
 }