diff --git a/augie/lib/augie/devices/pca9641.ex b/augie/lib/augie/devices/pca9641.ex
index 6a1a64b..5ce1795 100644
--- a/augie/lib/augie/devices/pca9641.ex
+++ b/augie/lib/augie/devices/pca9641.ex
@@ -274,7 +274,7 @@ defmodule Augie.Device.PCA9641 do
   def bus_address, do: config() |> Keyword.get(:address, 0x70)
 
   def interrupt_pin,
-    do: config() |> Keyword.get(:interrupt_pin, {Augie.IOPin.GPIO, :start_link, [4, :input]})
+    do: config() |> Keyword.get(:interrupt_pin, {Augie.IOPin.GPIO, :start_link, [7, :input]})
 
   defp attached_devices do
     bus_name()