diff --git a/internal/rosa/llvm.go b/internal/rosa/llvm.go
index bfd75b2..e147572 100644
--- a/internal/rosa/llvm.go
+++ b/internal/rosa/llvm.go
@@ -208,6 +208,8 @@ func (t Toolchain) newLLVM() (musl, compilerRT, runtimes, clang pkg.Artifact) {
 	switch runtime.GOARCH {
 	case "386", "amd64":
 		target = "X86"
+	case "arm64":
+		target = "AArch64"
 
 	default:
 		panic("unsupported target " + runtime.GOARCH)
diff --git a/internal/rosa/rosa.go b/internal/rosa/rosa.go
index 5c3b030..f90626a 100644
--- a/internal/rosa/rosa.go
+++ b/internal/rosa/rosa.go
@@ -49,6 +49,8 @@ func linuxArch() string {
 	switch runtime.GOARCH {
 	case "amd64":
 		return "x86_64"
+	case "arm64":
+		return "aarch64"
 
 	default:
 		panic("unsupported target " + runtime.GOARCH)