diff --git a/scripts/mbedtls_dev/build_tree.py b/scripts/mbedtls_dev/build_tree.py
index 4e0ae1953..c2a370d7e 100644
--- a/scripts/mbedtls_dev/build_tree.py
+++ b/scripts/mbedtls_dev/build_tree.py
@@ -33,7 +33,7 @@ def crypto_core_directory(root: Optional[str] = None) -> str:
     else:
         raise Exception('Neither Mbed TLS nor TF-PSA-Crypto source tree found')
 
-def project_crypto_name(root: Optional[str] = None) -> str:
+def crypto_library_filename(root: Optional[str] = None) -> str:
     """Return the crypto library filename for either TF-PSA-Crypto or Mbed TLS."""
     if root is None:
         root = guess_project_root()
diff --git a/tests/scripts/test_psa_compliance.py b/tests/scripts/test_psa_compliance.py
index 034949bc6..984ddf3e1 100755
--- a/tests/scripts/test_psa_compliance.py
+++ b/tests/scripts/test_psa_compliance.py
@@ -50,7 +50,7 @@ def main(library_build_dir: str):
 
     in_tf_psa_crypto_repo = build_tree.looks_like_tf_psa_crypto_root(root_dir)
 
-    crypto_name = build_tree.project_crypto_name(root_dir)
+    crypto_name = build_tree.crypto_library_filename(root_dir)
     library_subdir = build_tree.crypto_core_directory(root_dir)
 
     crypto_lib_filename = (library_build_dir + '/' +