diff --git a/sys-kernel/scx/scx-1.1.1.ebuild b/sys-kernel/scx/scx-1.1.1.ebuild
index 09e6a71f0f1c3..2fb463a27e789 100644
--- a/sys-kernel/scx/scx-1.1.1.ebuild
+++ b/sys-kernel/scx/scx-1.1.1.ebuild
@@ -3,9 +3,11 @@
 
 EAPI=8
 
+LLVM_COMPAT=( {16..21} )
+
 RUST_MIN_VER="1.88.0"
 
-inherit cargo linux-info
+inherit cargo llvm-r2 linux-info
 
 DESCRIPTION="sched_ext schedulers and tools"
 HOMEPAGE="https://github.com/sched-ext/scx"
@@ -40,7 +42,9 @@ BDEPEND="
 	app-misc/jq
 	dev-libs/protobuf[protoc(+)]
 	>=dev-util/bpftool-7.5.0
-	>=llvm-core/clang-17[llvm_targets_BPF(-)]
+	$(llvm_gen_dep '
+		llvm-core/clang:${LLVM_SLOT}=[llvm_targets_BPF(-)]
+	')
 "
 PDEPEND="~sys-kernel/scx-loader-${PV}"
 
@@ -61,9 +65,15 @@ QA_PREBUILT="/usr/bin/vmlinux_docify"
 
 pkg_setup() {
 	linux-info_pkg_setup
+	llvm-r2_pkg_setup
 	rust_pkg_setup
 }
 
+src_compile() {
+	local -x BPF_CLANG=clang-${LLVM_SLOT}
+	cargo_src_compile
+}
+
 src_test() {
 	# Skip broken tests in scx_mitosis and scx_utils
 	# Upstream: https://github.com/sched-ext/scx/issues/3418