diff --git a/tests/functions/test_get_mapper.py b/tests/functions/test_get_mapper.py
index 17646a0..7f75620 100644
--- a/tests/functions/test_get_mapper.py
+++ b/tests/functions/test_get_mapper.py
@@ -62,6 +62,7 @@ class TestGetMapperWithMultipleMappersFound(object):
             pass
 
         self.Building = Building
+        self.BigBuilding = BigBuilding
 
     def test_table(self):
         with raises(ValueError):