diff --git a/Demo/CORTEX_LM3S811_IAR/startup.c b/Demo/CORTEX_LM3S811_IAR/startup.c
index d53376fd7..1bd3bb1af 100644
--- a/Demo/CORTEX_LM3S811_IAR/startup.c
+++ b/Demo/CORTEX_LM3S811_IAR/startup.c
@@ -57,6 +57,7 @@ extern void xPortPendSVHandler(void);
 extern void xPortSysTickHandler(void);
 extern void vGPIO_ISR(void);
 extern void vUART_ISR(void);
+extern void vPortSVCHandler( void );
 
 //*****************************************************************************
 //
@@ -103,7 +104,7 @@ __root const uVectorEntry __vector_table[] @ ".intvec" =
     0,                                      // Reserved
     0,                                      // Reserved
     0,                                      // Reserved
-    IntDefaultHandler,                      // SVCall handler
+    vPortSVCHandler,                        // SVCall handler
     IntDefaultHandler,                      // Debug monitor handler
     0,                                      // Reserved
     xPortPendSVHandler,                     // The PendSV handler