diff --git a/lib_xua/api/xua_usb_params_funcs.h b/lib_xua/api/xua_usb_params_funcs.h
index 460c4008..2c815943 100644
--- a/lib_xua/api/xua_usb_params_funcs.h
+++ b/lib_xua/api/xua_usb_params_funcs.h
@@ -3,6 +3,8 @@
 #ifndef __XUA_API_H__
 #define __XUA_API_H__
 
+#include <stdint.h>
+
 extern void set_usb_to_device_rate(uint32_t rate);
 extern void set_device_to_usb_rate(uint32_t rate);
 extern void set_usb_to_device_bit_res(uint32_t rate);