diff --git a/tools/ci_build/build.py b/tools/ci_build/build.py
index 9f92205c53..48ee7a0160 100755
--- a/tools/ci_build/build.py
+++ b/tools/ci_build/build.py
@@ -209,8 +209,8 @@ def download_test_data(build_dir, src_url, expected_md5, azure_sas_key):
         elif shutil.which('curl'):
             subprocess.run(['curl', '-s', src_url, '-o', local_zip_file], check=True)
         else:
-            log.error("No downloading tool for use")
-            return False
+            import urllib.request
+            urllib.request.urlretrieve(src_url, local_zip_file)
     models_dir = os.path.join(build_dir,'models')
     if os.path.exists(models_dir):
         log.info('deleting %s' % models_dir)
@@ -226,7 +226,9 @@ def download_test_data(build_dir, src_url, expected_md5, azure_sas_key):
     return True
 
 def generate_build_tree(cmake_path, source_dir, build_dir, cuda_home, cudnn_home, pb_home, configs, cmake_extra_defines, args, cmake_extra_args):
-    has_test_data = download_test_data(build_dir, test_data_url, test_data_checksum, args.azure_sas_key)
+    has_test_data = False
+    if args.enable_onnx_tests:
+      has_test_data = download_test_data(build_dir, test_data_url, test_data_checksum, args.azure_sas_key)
     #create a shortcut for test models if there is a 'models' folder in build_dir
     if has_test_data and is_windows():
         src_model_dir = os.path.join(build_dir, 'models')