diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index 251222c..cabe733 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -7279,6 +7279,7 @@
         in->usecase = USECASE_AUDIO_RECORD_MMAP;
         in->config = pcm_config_mmap_capture;
         in->config.format = pcm_format_from_audio_format(config->format);
+        in->config.channels = channel_count;
         in->stream.start = in_start;
         in->stream.stop = in_stop;
         in->stream.create_mmap_buffer = in_create_mmap_buffer;