diff --git a/lib_xua/src/dfu/flash_interface.c b/lib_xua/src/dfu/flash_interface.c
index 0409d250..246e1c27 100755
--- a/lib_xua/src/dfu/flash_interface.c
+++ b/lib_xua/src/dfu/flash_interface.c
@@ -4,6 +4,8 @@
 #include <string.h>
 #include <xclib.h>
 
+#include "xua.h"
+
 #if (XUA_DFU_EN == 1)
 
 /* Defines flash area to erase on first DFU download request received