diff --git a/unittests/test_container.py b/unittests/test_container.py
index 209aa13ad2510e264abdad684b9924a40031d5c1..c2b6fcedd9222ee460f0a5cb657f243f176ba164 100644
--- a/unittests/test_container.py
+++ b/unittests/test_container.py
@@ -25,28 +25,28 @@
 """Tests for the Container class."""
 from __future__ import absolute_import
 
-import caosdb as c
+import caosdb as db
 
 
 def test_get_property_values():
-    rt_house = c.RecordType("House")
-    rt_window = c.RecordType("Window")
-    rt_owner = c.RecordType("Owner")
-    p_height = c.Property("Height", datatype=c.DOUBLE)
+    rt_house = db.RecordType("House")
+    rt_window = db.RecordType("Window")
+    rt_owner = db.RecordType("Owner")
+    p_height = db.Property("Height", datatype=db.DOUBLE)
 
-    window = c.Record().add_parent(rt_window)
+    window = db.Record().add_parent(rt_window)
     window.id = 1001
     window.add_property(p_height, 20.5, unit="m")
 
-    owner = c.Record("The Queen").add_parent(rt_owner)
+    owner = db.Record("The Queen").add_parent(rt_owner)
 
-    house = c.Record("Buckingham Palace")
+    house = db.Record("Buckingham Palace")
     house.add_parent(rt_house)
     house.add_property(rt_owner, owner)
     house.add_property(rt_window, window)
     house.add_property(p_height, 40.2, unit="ft")
 
-    container = c.Container()
+    container = db.Container()
     container.extend([
         house,
         owner
@@ -80,40 +80,40 @@ def test_get_property_values():
 
 
 def test_container_dependencies_for_deletion():
-    rt = c.RecordType("Just a RecordType")
+    rt = db.RecordType("Just a RecordType")
     rt.id = 1001
-    rt_dep = c.RecordType("Just another RecordType")
+    rt_dep = db.RecordType("Just another RecordType")
     rt_dep.id = 1002
-    rt_record_without_dependencies = c.RecordType(
+    rt_record_without_dependencies = db.RecordType(
         "Records without dependencies")
     rt_record_without_dependencies.id = 1003
-    rt_record_with_dependencies = c.RecordType("Records with dependencies")
+    rt_record_with_dependencies = db.RecordType("Records with dependencies")
     rt_record_with_dependencies.id = 1004
-    rt_record_with_parent = c.RecordType("Records with parent")
+    rt_record_with_parent = db.RecordType("Records with parent")
     rt_record_with_parent.id = 1005
-    property_which_is_not_a_record = c.Property(
-        "Normal Property", datatype=c.DOUBLE, value=1006)
+    property_which_is_not_a_record = db.Property(
+        "Normal Property", datatype=db.DOUBLE, value=1006)
     property_which_is_not_a_record.id = 1006
 
-    record_without_dependencies = c.Record().add_parent(rt_record_without_dependencies)
+    record_without_dependencies = db.Record().add_parent(rt_record_without_dependencies)
     record_without_dependencies.id = 2003
 
-    record_dep = c.Record().add_parent(rt_dep)
+    record_dep = db.Record().add_parent(rt_dep)
     record_dep.id = 2002
-    record_with_dependencies = c.Record().add_parent(rt_record_with_dependencies)
+    record_with_dependencies = db.Record().add_parent(rt_record_with_dependencies)
     record_with_dependencies.id = 2004
     record_with_dependencies.add_property(rt_dep, record_dep)
 
-    record_with_parent = c.Record().add_parent(rt_record_with_parent)
+    record_with_parent = db.Record().add_parent(rt_record_with_parent)
     record_with_parent.id = 2005
 
-    record_with_property_which_is_not_a_record = c.Record(
+    record_with_property_which_is_not_a_record = db.Record(
     ).add_parent(rt_record_without_dependencies)
     record_with_property_which_is_not_a_record.id = 2006
     record_with_property_which_is_not_a_record.add_property(
         property_which_is_not_a_record)
 
-    container = c.Container()
+    container = db.Container()
     container.extend([
         rt,
         rt_record_with_parent,  # 1005, dependency
@@ -123,4 +123,4 @@ def test_container_dependencies_for_deletion():
         record_with_parent,
         record_with_property_which_is_not_a_record
     ])
-    assert c.Container()._test_dependencies_in_container(container) == {2002, 1005}
+    assert db.Container()._test_dependencies_in_container(container) == {2002, 1005}