diff --git a/tools/test/toolchains/api_test.py b/tools/test/toolchains/api_test.py
index f8ddf08e01..4e82c01292 100644
--- a/tools/test/toolchains/api_test.py
+++ b/tools/test/toolchains/api_test.py
@@ -99,6 +99,8 @@ def test_toolchain_profile_asm(profile, source_file):
                                  notify=MockNotifier)
             toolchain.inc_md5 = ""
             toolchain.build_dir = ""
+            toolchain.config = MagicMock()
+            toolchain.config.get_config_data_macros.return_value = []
             for parameter in profile['asm']:
                 assert any(parameter in cmd for cmd in toolchain.asm), \
                     "Toolchain %s did not propagate arg %s" % (toolchain.name,