diff --git a/hw/arm/iotkit.c b/hw/arm/iotkit.c
index c76d3ed743..8cadc8b160 100644
--- a/hw/arm/iotkit.c
+++ b/hw/arm/iotkit.c
@@ -382,7 +382,7 @@ static void iotkit_realize(DeviceState *dev, Error **errp)
         return;
     }
     sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer1), 0,
-                       qdev_get_gpio_in(DEVICE(&s->armv7m), 3));
+                       qdev_get_gpio_in(DEVICE(&s->armv7m), 4));
     mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->timer1), 0);
     object_property_set_link(OBJECT(&s->apb_ppc0), OBJECT(mr), "port[1]", &err);
     if (err) {