diff --git a/audio/aidl/default/Configuration.cpp b/audio/aidl/default/Configuration.cpp
index 2a8e58f..54e2d18 100644
--- a/audio/aidl/default/Configuration.cpp
+++ b/audio/aidl/default/Configuration.cpp
@@ -110,6 +110,9 @@
     AudioPortConfig config;
     config.id = id;
     config.portId = portId;
+    config.format = AudioFormatDescription{};
+    config.channelMask = AudioChannelLayout{};
+    config.sampleRate = Int{.value = 0};
     config.gain = AudioGainConfig();
     config.flags = isInput ? AudioIoFlags::make<AudioIoFlags::Tag::input>(flags)
                            : AudioIoFlags::make<AudioIoFlags::Tag::output>(flags);