diff --git a/input/classifier/1.0/vts/functional/Android.bp b/input/classifier/1.0/vts/functional/Android.bp
index 5ff1457..22346ed 100644
--- a/input/classifier/1.0/vts/functional/Android.bp
+++ b/input/classifier/1.0/vts/functional/Android.bp
@@ -25,6 +25,7 @@
 
 cc_test {
     name: "VtsHalInputClassifierV1_0TargetTest",
+    cpp_std: "c++20",
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: [
         ":inputconstants_aidl",