diff --git a/module_usb_audio/mixer/mixer.xc b/module_usb_audio/mixer/mixer.xc
index aa4f3f51..44e4b54b 100644
--- a/module_usb_audio/mixer/mixer.xc
+++ b/module_usb_audio/mixer/mixer.xc
@@ -366,7 +366,7 @@ static void mixer1(chanend c_host, chanend c_mix_ctl, chanend c_mixer2)
         /* Forward on Request for data to decouple thread */
         outuint(c_host, request);
 
-        /* Between request to decouple and respose ~ 400nS latency for interrupt to fire */
+        /* Between request to decouple and response ~ 400nS latency for interrupt to fire */
         select
         {
             case inuint_byref(c_mix_ctl, cmd):