diff --git a/audio/drivers_microphone/alsa.c b/audio/drivers_microphone/alsa.c
index 2879709106..1e29ae4d3a 100644
--- a/audio/drivers_microphone/alsa.c
+++ b/audio/drivers_microphone/alsa.c
@@ -268,7 +268,7 @@ static bool alsa_microphone_stop_mic(void *driver_context, void *mic_context)
 static bool alsa_microphone_mic_use_float(const void *driver_context, const void *mic_context)
 {
    alsa_microphone_handle_t *mic = (alsa_microphone_handle_t*)mic_context;
-   return microphone->stream_info.has_float;
+   return mic->stream_info.has_float;
 }
 
 microphone_driver_t microphone_alsa = {
diff --git a/audio/drivers_microphone/alsathread.c b/audio/drivers_microphone/alsathread.c
index aee708e71e..3b4e4f9397 100644
--- a/audio/drivers_microphone/alsathread.c
+++ b/audio/drivers_microphone/alsathread.c
@@ -311,7 +311,7 @@ error:
    if (mic)
    {
       if (mic->info.pcm)
-         snd_pcm_close(microphone->info.pcm);
+         snd_pcm_close(mic->info.pcm);
 
       alsa_thread_microphone_close_mic(alsa, mic);
    }