-#define SIG_UART0_RECV USART0_RX_vect
-#elif defined(SIG_USART0_RECV)
-#define SIG_UART0_RECV SIG_USART0_RECV
+#define USART0_RXC_vect USART0_RX_vect
+#else
+#if defined(SIG_USART0_RECV)
+#define USART0_RXC_vect SIG_USART0_RECV
+#elif defined(SIG_UART0_RECV)
+#define USART0_RXC_vect SIG_UART0_RECV