diff --git a/lib_xua/src/core/main.xc b/lib_xua/src/core/main.xc
index 589e6303..e4cf15e2 100755
--- a/lib_xua/src/core/main.xc
+++ b/lib_xua/src/core/main.xc
@@ -49,7 +49,7 @@
 #include "xua_pdm_mic.h"
 #endif
 
-#if XUA_DFU_EN == 1
+#if (XUA_DFU_EN == 1)
 [[distributable]]
 void DFUHandler(server interface i_dfu i, chanend ?c_user_cmd);
 #endif
diff --git a/lib_xua/src/dfu/dfu.xc b/lib_xua/src/dfu/dfu.xc
index 7e8dbe39..c5d3992f 100644
--- a/lib_xua/src/dfu/dfu.xc
+++ b/lib_xua/src/dfu/dfu.xc
@@ -1,5 +1,5 @@
 #include "xua.h"
-#if (XUA_DFU == 1)
+#if (XUA_DFU_EN== 1)
 #include <xs1.h>
 #include <platform.h>