diff --git a/python/src/trezorlib/firmware/models.py b/python/src/trezorlib/firmware/models.py
index 1cf6204369..eb46b7b91b 100644
--- a/python/src/trezorlib/firmware/models.py
+++ b/python/src/trezorlib/firmware/models.py
@@ -351,7 +351,7 @@ MODEL_CODE_ALIGNMENT_MAP = {
     Model.T2B1: 0x200,
     Model.T3T1: 0x200,
     Model.T3B1: 0x200,
-    Model.T3W1: 0x200,
+    Model.T3W1: 0x400,
     Model.D001: 0x200,
     Model.D002: 0x400,
 }