diff --git a/module_usb_audio/commands.h b/module_usb_audio/commands.h
index bf9f824b..c9c5160e 100644
--- a/module_usb_audio/commands.h
+++ b/module_usb_audio/commands.h
@@ -27,6 +27,9 @@
 #define SET_CHAN_COUNT_OUT      6
 #define SET_DSD_MODE            7
 
+#define SET_STREAM_FORMAT_OUT   8
+#define SET_STREAM_FORMAT_IN    9 
+
 #include "dsd_support.h"