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 4539748..e153257 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=8)
+                                            -DBCD_DEVICE_N=9)
 
 set(SW_FACT_VERSION                         -DBCD_DEVICE_J=5
                                             -DBCD_DEVICE_M=5
@@ -135,10 +135,12 @@ set(APP_COMPILER_FLAGS_fps_uac1  ${SW_USB_AUDIO_FLAGS}            -DXUA_SPDIF_RX
                                                                   -DMIN_FREQ=\(48000\)
                                                                   -DDEFAULT_FREQ=\(48000\)
                                                                   -lxmos_fps
+                                                                  -lxmos_ns
                                                                   -DHID_CONTROLS_UAC1=1
                                                                   -DHID_DFU_EN=1
                                                                   -DEQ_EN=1
                                                                   -DXMOS_FPS_EN=1
+                                                                  -DXMOS_NS_EN=1
                                                                   -DUAC1=1
                                                                   -DWIN_OS_DETECTION=1
                                                                   #-DLOW_POWER_EN=1