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-rw-r--r--cores/arduino/wiring.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/cores/arduino/wiring.c b/cores/arduino/wiring.c
index ac8bb6f..a3c4390 100644
--- a/cores/arduino/wiring.c
+++ b/cores/arduino/wiring.c
@@ -42,9 +42,9 @@ volatile unsigned long timer0_millis = 0;
static unsigned char timer0_fract = 0;
#if defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__)
-SIGNAL(TIM0_OVF_vect)
+ISR(TIM0_OVF_vect)
#else
-SIGNAL(TIMER0_OVF_vect)
+ISR(TIMER0_OVF_vect)
#endif
{
// copy these to local variables so they can be stored in registers