diff --git a/media-libs/osl/osl-1.10.5.ebuild b/media-libs/osl/osl-1.10.5.ebuild
index 190989d2cc9ee..9942f144b9a0c 100644
--- a/media-libs/osl/osl-1.10.5.ebuild
+++ b/media-libs/osl/osl-1.10.5.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2019 Gentoo Authors
+# Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -30,6 +30,7 @@ RDEPEND="
 	>=media-libs/openexr-2.2.0:=
 	>=media-libs/openimageio-1.8.5
 	>=sys-devel/clang-5:=
+	<sys-devel/clang-9:=
 	sys-libs/zlib:=
 	partio? ( media-libs/partio )
 	qt5? (