diff --git a/audio/common/2.0/default/VersionUtils.h b/audio/common/2.0/default/VersionUtils.h
index fef4680..60d1f9c 100644
--- a/audio/common/2.0/default/VersionUtils.h
+++ b/audio/common/2.0/default/VersionUtils.h
@@ -28,6 +28,8 @@
 
 typedef common::V2_0::AudioDevice AudioDeviceBitfield;
 typedef common::V2_0::AudioChannelMask AudioChannelBitfield;
+typedef common::V2_0::AudioOutputFlag AudioOutputFlagBitfield;
+typedef common::V2_0::AudioInputFlag AudioInputFlagBitfield;
 
 }  // namespace implementation
 }  // namespace V2_0