diff --git a/python/nistoar/midas/dbio/mongo.py b/python/nistoar/midas/dbio/mongo.py
index 6793f17..4928794 100644
--- a/python/nistoar/midas/dbio/mongo.py
+++ b/python/nistoar/midas/dbio/mongo.py
@@ -11,7 +11,7 @@
 
 from nistoar.base.config import ConfigurationException, merge_config
 
-_dburl_re = re.compile(r"^mongodb://(\w+(:\S+)?@)?\w+(\.\w+)*(:\d+)?/\w+$")
+_dburl_re = re.compile(r"^mongodb://(\w+(:\S+)?@)?\w+(\.\w+)*(:\d+)?/\w+(\?\w.*)?$")
 
 class MongoDBClient(base.DBClient):
     """
diff --git a/python/tests/nistoar/midas/dbio/test_mongo.py b/python/tests/nistoar/midas/dbio/test_mongo.py
index 02d16f9..88331d6 100644
--- a/python/tests/nistoar/midas/dbio/test_mongo.py
+++ b/python/tests/nistoar/midas/dbio/test_mongo.py
@@ -72,7 +72,7 @@ def tearDown(self):
             client.get_database = client.get_default_database
         db = client.get_database()
         for coll in [base.GROUPS_COLL, base.PEOPLE_COLL, base.DMP_PROJECTS, base.DRAFT_PROJECTS,
-                     "nextnum", "about", "action_log", "history"]:
+                     "nextnum", "about", "prov_action_log", "history"]:
             if coll in db.list_collection_names():
                 db.drop_collection(coll)
 
@@ -346,31 +346,25 @@ def test_select_records(self):
         self.assertEqual(recs[0].id, id)
 
     def test_action_log_io(self):
-        self.assertEqual(self.cli.native['action_log'].count_documents({}), 0)
-        self.cli._save_action_data(
-            {'subject': 'goob:gurn', 'foo': 'bar', 'timestamp': 8})
-        acts = [r for r in self.cli.native['action_log'].find(
-            {}, {'_id': False})]
+        self.assertEqual(self.cli.native['prov_action_log'].count_documents({}), 0)
+        self.cli._save_action_data({'subject': 'goob:gurn', 'foo': 'bar', 'timestamp': 8})
+        acts = [r for r in self.cli.native['prov_action_log'].find({}, {'_id': False})]
         self.assertEqual(len(acts), 1)
         self.assertEqual(
             acts[0], {'subject': 'goob:gurn', 'foo': 'bar', 'timestamp': 8})
 
-        self.cli._save_action_data(
-            {'subject': 'goob:gurn', 'bob': 'alice', 'timestamp': 5})
-        acts = [r for r in self.cli.native['action_log'].find(
-            {}, {'_id': False})]
+        self.cli._save_action_data({'subject': 'goob:gurn', 'bob': 'alice', 'timestamp': 5})
+        acts = [r for r in self.cli.native['prov_action_log'].find({}, {'_id': False})]
         self.assertEqual(len(acts), 2)
         self.assertEqual(
             acts[0], {'subject': 'goob:gurn', 'foo': 'bar', 'timestamp': 8})
         self.assertEqual(
             acts[1], {'subject': 'goob:gurn', 'bob': 'alice', 'timestamp': 5})
 
-        self.assertEqual(self.cli.native['action_log'].count_documents(
-            {'subject': 'grp0001'}), 0)
+        self.assertEqual(self.cli.native['prov_action_log'].count_documents({'subject': 'grp0001'}), 0)
         self.cli._save_action_data({'subject': 'grp0001', 'dylan': 'bob'})
-        self.assertEqual(self.cli.native['action_log'].count_documents({}), 3)
-        acts = [r for r in self.cli.native['action_log'].find(
-            {'subject': 'grp0001'}, {'_id': False})]
+        self.assertEqual(self.cli.native['prov_action_log'].count_documents({}), 3)
+        acts = [r for r in self.cli.native['prov_action_log'].find({'subject': 'grp0001'}, {'_id': False})]
         self.assertEqual(len(acts), 1)
         self.assertEqual(acts[0], {'subject': 'grp0001', 'dylan': 'bob'})
 
@@ -386,11 +380,10 @@ def test_action_log_io(self):
         self.assertEqual(acts[0], {'subject': 'grp0001', 'dylan': 'bob'})
 
         self.cli._delete_actions_for("grp0001")
-        self.assertEqual(self.cli.native['action_log'].count_documents({}), 2)
-        self.assertEqual(self.cli.native['action_log'].count_documents(
-            {'subject': 'grp0001'}), 0)
+        self.assertEqual(self.cli.native['prov_action_log'].count_documents({}), 2)
+        self.assertEqual(self.cli.native['prov_action_log'].count_documents({'subject': 'grp0001'}), 0)
         self.cli._delete_actions_for("goob:gurn")
-        self.assertEqual(self.cli.native['action_log'].count_documents({}), 0)
+        self.assertEqual(self.cli.native['prov_action_log'].count_documents({}), 0)
 
         self.assertEqual(self.cli._select_actions_for("goob:gurn"), [])
         self.assertEqual(self.cli._select_actions_for("grp0001"), [])