diff --git a/audio/aidl/vts/VtsHalDownmixTargetTest.cpp b/audio/aidl/vts/VtsHalDownmixTargetTest.cpp
index 322fdc0..5c5be3a 100644
--- a/audio/aidl/vts/VtsHalDownmixTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalDownmixTargetTest.cpp
@@ -86,7 +86,7 @@
 
 class DownmixEffectHelper : public EffectHelper {
   public:
-    void SetUpDownmix(int32_t inputBufferLayout = AudioChannelLayout::LAYOUT_STEREO) {
+    void SetUpDownmix(int32_t inputBufferLayout = kDefaultChannelLayout) {
         ASSERT_NE(nullptr, mFactory);
         ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));