diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
index fcf9070..cdaffe7 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
@@ -385,6 +385,7 @@
     mSamplingRate = 0;
     mChannelMask = AUDIO_CHANNEL_NONE;
     mFormat = AUDIO_FORMAT_INVALID;
+    memset(&mGain, 0, sizeof(struct audio_gain_config));
     mGain.index = -1;
 }