diff --git a/tests/database/test_mongo.py b/tests/database/test_mongo.py
index f0e0f74..169b346 100644
--- a/tests/database/test_mongo.py
+++ b/tests/database/test_mongo.py
@@ -144,6 +144,7 @@ def test_insert(self):
 
         pathlib.Path('test.h5').unlink()
 
+    @is_testable
     def test_insert_group(self):
         mongoDBInterface = MongoDB(collection=self.collection)