diff --git a/bsp/mini2440/application.c b/bsp/mini2440/application.c
index 042dddba18..ad2529d50b 100644
--- a/bsp/mini2440/application.c
+++ b/bsp/mini2440/application.c
@@ -38,7 +38,6 @@
 #ifdef RT_USING_RTGUI
 extern void rt_hw_lcd_init(void);
 extern void rt_hw_key_init(void);
-extern void radio_rtgui_init(void);
 #endif
 
 void rt_init_thread_entry(void* parameter)