diff --git a/llvm-runtimes/flang-rt/flang-rt-21.1.0.ebuild b/llvm-runtimes/flang-rt/flang-rt-21.1.0.ebuild
index afd5496ffa4b9..7e6c7b1fc4726 100644
--- a/llvm-runtimes/flang-rt/flang-rt-21.1.0.ebuild
+++ b/llvm-runtimes/flang-rt/flang-rt-21.1.0.ebuild
@@ -11,7 +11,8 @@ HOMEPAGE="https://flang.llvm.org/"
 
 LICENSE="Apache-2.0-with-LLVM-exceptions"
 SLOT="${LLVM_MAJOR}"
-IUSE="+debug test"
+KEYWORDS="~amd64 ~arm64"
+IUSE="debug test"
 RESTRICT="!test? ( test )"
 
 RDEPEND="