diff --git a/draft/overlay/adafruit_matrix.md b/draft/overlay/adafruit_matrix.md
index c21f4ee..76126ae 100644
--- a/draft/overlay/adafruit_matrix.md
+++ b/draft/overlay/adafruit_matrix.md
@@ -14,6 +14,8 @@
  power:
    '1':
    '2':
+   '4':
+   '17':
  ground:
    '6': 
  pin: