diff --git a/rtthread_patch/realtek/8711b/app_start.c b/rtthread_patch/realtek/8711b/app_start.c
index 07658f1..2b4c45e 100644
--- a/rtthread_patch/realtek/8711b/app_start.c
+++ b/rtthread_patch/realtek/8711b/app_start.c
@@ -9,10 +9,14 @@
 
 #include "ameba_soc.h"
 #include "build_info.h"
-#include "rtconfig.h"
+#include "rtthread.h"
 
 extern int rtthread_startup(void);
 
+RT_WEAK void SVC_Handler(void)
+{
+}
+
 void APP_Start(void)
 {
 #if CONFIG_SOC_PS_MODULE
@@ -21,7 +25,7 @@ void APP_Start(void)
 
     extern void PendSV_Handler(void);
     extern void SysTick_Handler(void);
-	InterruptForOSInit((VOID*)NULL,
+	InterruptForOSInit((VOID*)SVC_Handler,
 		(VOID*)PendSV_Handler,
 		(VOID*)SysTick_Handler);