diff --git a/scripts/mbedtls_dev/ecp.py b/scripts/mbedtls_dev/ecp.py
index ed79a07..410c77e 100644
--- a/scripts/mbedtls_dev/ecp.py
+++ b/scripts/mbedtls_dev/ecp.py
@@ -574,7 +574,7 @@
     symbol = "-"
     test_function = "ecp_mod_p_generic_raw"
     test_name = "ecp_mod_p224k1_raw"
-    input_style = "fixed"
+    input_style = "arch_split"
     arity = 1
     dependencies = ["MBEDTLS_ECP_DP_SECP224K1_ENABLED"]