diff --git a/modules/audio_device/audio_device_config.h b/modules/audio_device/audio_device_config.h
index 2d1e94fbd4..fd12c8bedd 100644
--- a/modules/audio_device/audio_device_config.h
+++ b/modules/audio_device/audio_device_config.h
@@ -19,11 +19,13 @@ enum { GET_MIC_VOLUME_INTERVAL_MS = 1000 };
 //
 #if defined(_WIN32)
 #if (_MSC_VER >= 1400)
+#if !defined(WEBRTC_DUMMY_FILE_DEVICES)
 // Windows Core Audio is the default audio layer in Windows.
 // Only supported for VS 2005 and higher.
 #define WEBRTC_WINDOWS_CORE_AUDIO_BUILD
 #endif
 #endif
+#endif
 
 #endif  // AUDIO_DEVICE_AUDIO_DEVICE_CONFIG_H_