diff --git a/main.c b/main.c
index 8e2ee04..df57507 100644
--- a/main.c
+++ b/main.c
@@ -87,10 +87,9 @@ int main(void) {
     // Configure the LED pin as an output
     DDRB |= _BV(LED_PIN);
 
-    // Choose one (or both)
     // configure_interrupt();
-    // configure_ovf_interrupt();
-    configure_external_interrupt();
+    configure_ovf_interrupt();
+    // configure_external_interrupt();
 
     // Set the watchdog timer to 8 seconds
     // wdt_enable(WDTO_8S);