diff --git a/rust/config/arm_device.go b/rust/config/arm_device.go
index adfe917..42c1c02 100644
--- a/rust/config/arm_device.go
+++ b/rust/config/arm_device.go
@@ -72,6 +72,10 @@
 	return true
 }
 
+func (toolchainArm) LibclangRuntimeLibraryArch() string {
+	return "arm"
+}
+
 func ArmToolchainFactory(arch android.Arch) Toolchain {
 	toolchainRustFlags := []string{
 		"${config.ArmToolchainRustFlags}",