diff --git a/wasp/drivers/bma421.py b/wasp/drivers/bma421.py
index fa40fcc..d69cc56 100644
--- a/wasp/drivers/bma421.py
+++ b/wasp/drivers/bma421.py
@@ -19,7 +19,7 @@ from machine import Pin
 #         Y index ───────────────┐ │
 #         X index ─────────────┐ │ │
 #                              ├┐├┐├┐
-_DEFAULT_ORIENTATION = const(0b010010101)
+_DEFAULT_ORIENTATION = const(0b010010000)
 #          1 = keep, 0 = negate      │││
 #          X sign ───────────────────┘││
 #          Y sign ────────────────────┘│