diff --git a/targets/TARGET_NUVOTON/TARGET_NANO100/device/startup_Nano100Series.c b/targets/TARGET_NUVOTON/TARGET_NANO100/device/startup_Nano100Series.c
index da4379dd34..57f1f81e87 100644
--- a/targets/TARGET_NUVOTON/TARGET_NANO100/device/startup_Nano100Series.c
+++ b/targets/TARGET_NUVOTON/TARGET_NANO100/device/startup_Nano100Series.c
@@ -114,7 +114,7 @@ WEAK_ALIAS_FUNC(RTC_IRQHandler, Default_Handler)            // Real time clock i
 
 /* Vector table */
 #if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
-__attribute__ ((section("RESET")))
+__attribute__ ((section("RESET"), used))
 const uint32_t __vector_handlers[] = {
 #elif defined(__ICCARM__)
 extern uint32_t CSTACK$$Limit;