diff --git a/sw_usb_audio/app_usb_aud_fosi_c1/CMakeLists.txt b/sw_usb_audio/app_usb_aud_fosi_c1/CMakeLists.txt
index 5c68fad..d769146 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1/CMakeLists.txt
+++ b/sw_usb_audio/app_usb_aud_fosi_c1/CMakeLists.txt
@@ -9,7 +9,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/../deps.cmake)
 
 set(SW_USB_VERSION                          -DBCD_DEVICE_J=1
                                             -DBCD_DEVICE_M=0
-                                            -DBCD_DEVICE_N=3)
+                                            -DBCD_DEVICE_N=4)
 
 set(SW_FACT_VERSION                         -DBCD_DEVICE_J=5
                                             -DBCD_DEVICE_M=5