diff --git a/ports/raspberrypi/common-hal/pulseio/PulseIn.c b/ports/raspberrypi/common-hal/pulseio/PulseIn.c
index 6377fa7a9c..1b433d79c3 100644
--- a/ports/raspberrypi/common-hal/pulseio/PulseIn.c
+++ b/ports/raspberrypi/common-hal/pulseio/PulseIn.c
@@ -82,6 +82,7 @@ void common_hal_pulseio_pulsein_construct(pulseio_pulsein_obj_t* self,
         NULL, 0,
         NULL, 0,
         pin, 1,
+        0,0,
         NULL, 0,
         NULL, 0,
         1, 0,