diff --git a/bsp/tm4c129x/libraries/startup/startup_gcc.c b/bsp/tm4c129x/libraries/startup/startup_gcc.c
index 9f20837e514ebedf7559eff5b9954c0c7535bc64..3f9d93a46bed34c32e455b98dab7199c041a4673 100644
--- a/bsp/tm4c129x/libraries/startup/startup_gcc.c
+++ b/bsp/tm4c129x/libraries/startup/startup_gcc.c
@@ -217,8 +217,7 @@ extern uint32_t _ebss;
 // application.
 //
 //*****************************************************************************
-void
-ResetISR(void)
+void ResetISR(void)
 {
     uint32_t *pui32Src, *pui32Dest;
 
@@ -261,7 +260,8 @@ ResetISR(void)
     //
     // Call the application's entry point.
     //
-    main();
+    extern int entry(void);
+    entry();
 }
 
 //*****************************************************************************