diff --git a/profiles/arch/arm64/package.use.stable.mask b/profiles/arch/arm64/package.use.stable.mask
index 6739de72ab56c..5b3f724a4e79a 100644
--- a/profiles/arch/arm64/package.use.stable.mask
+++ b/profiles/arch/arm64/package.use.stable.mask
@@ -5,6 +5,7 @@
 # Temporary mask due to test failures in sys-libs/libcxxabi
 # and sys-libs/compiler-rt-sanitizers
 sys-devel/clang-runtime libcxx sanitize
+sys-devel/clang default-libcxx
 
 # Mart Raudsepp <leio@gentoo.org> (28 Jun 2018)
 # net-misc/lksctp-tools not stable yet
diff --git a/sys-devel/clang/clang-6.0.1.ebuild b/sys-devel/clang/clang-6.0.1.ebuild
index 6de97cd73bded..39b71cfb0d7bd 100644
--- a/sys-devel/clang/clang-6.0.1.ebuild
+++ b/sys-devel/clang/clang-6.0.1.ebuild
@@ -31,7 +31,7 @@ LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
 
 LICENSE="UoI-NCSA"
 SLOT="$(ver_cut 1)"
-KEYWORDS="amd64 ~arm64 ~ppc64 x86 ~amd64-fbsd ~amd64-linux ~ppc-macos ~x64-macos ~x86-macos"
+KEYWORDS="amd64 arm64 ~ppc64 x86 ~amd64-fbsd ~amd64-linux ~ppc-macos ~x64-macos ~x86-macos"
 IUSE="debug default-compiler-rt default-libcxx doc +static-analyzer
 	test xml z3 kernel_FreeBSD ${ALL_LLVM_TARGETS[*]}"
 RESTRICT="!test? ( test )"