diff --git a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/lfs_services.c b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/lfs_services.c
index 0df1818..602cf01 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/lfs_services.c
+++ b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/lfs_services.c
@@ -20,7 +20,7 @@ lfs_file_t file;
 swlock_t flash_lock = SWLOCK_INITIAL_VALUE;
 
 static rtos_qspi_flash_t qspi_flash_ctx_s;
-#define FLASH_CLKBLK XS1_CLKBLK_3
+#define FLASH_CLKBLK CLKBLK_FLASHLIB 
 #ifndef FS_BASE_ADDR
 #define FS_BASE_ADDR (2500 * 1024)
 #endif