diff --git a/tests/test_exports.py b/tests/test_exports.py
index e4b90f90..7cf74c30 100644
--- a/tests/test_exports.py
+++ b/tests/test_exports.py
@@ -69,7 +69,7 @@ class TestExports(TestCase):
     try:
       ExportsFactory(export_type, self._complete_city, self._output_path).export()
     except ValueError as err:
-      if export_type != '_stl':
+      if export_type != 'stl':
         logging.warning('No backend export for STL test, skipped')
         raise err