diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index 2272c89..3d3a5d7 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -4211,7 +4211,7 @@
     out->dev = adev;
     format = out->format = config->format;
     out->sample_rate = config->sample_rate;
-    out->channel_mask = AUDIO_CHANNEL_OUT_STEREO;
+    out->channel_mask = config->channel_mask;
     out->supported_channel_masks[0] = AUDIO_CHANNEL_OUT_STEREO;
     out->handle = handle;
     out->bit_width = CODEC_BACKEND_DEFAULT_BIT_WIDTH;