diff --git a/model/py/message_build.py b/model/py/hash_model.py
similarity index 99%
rename from model/py/message_build.py
rename to model/py/hash_model.py
index ef9f5dd8c9a65404975db9b6b69086c2ffb6c582..4695bc278d284cf2ebb75759e9f18334ae1a8437 100644
--- a/model/py/message_build.py
+++ b/model/py/hash_model.py
@@ -1,5 +1,5 @@
 #-----------------------------------------------------------------------------
-# SoC Labs Basic SHA-2 Message Builder Python Reference
+# SoC Labs Basic SHA-2 Hashing Model Python Reference
 # A joint work commissioned on behalf of SoC Labs, under Arm Academic Access license.
 #
 # Contributors