diff --git a/daliuge-engine/test/apps/test_docker.py b/daliuge-engine/test/apps/test_docker.py
index f0f0180bd..f88163307 100644
--- a/daliuge-engine/test/apps/test_docker.py
+++ b/daliuge-engine/test/apps/test_docker.py
@@ -29,7 +29,7 @@
 import configobj
 import docker
 
-from dlg import droputils, utils
+from dlg import droputils, utils, prepareUser
 from dlg.apps.dockerapp import DockerApp
 from dlg.data.drops.ngas import NgasDROP
 from dlg.data.drops.file import FileDROP
@@ -63,7 +63,7 @@ def setUpClass(cls):
 
         os.environ["DLG_ROOT"] = cls._temp
         logger.info(f"Preparing pwd and group files in {utils.getDlgDir()}")
-        _dum = utils.prepareUser(DLG_ROOT=utils.getDlgDir())
+        _dum = prepareUser.prepareUser(DLG_ROOT=utils.getDlgDir())
 
     @classmethod
     def tearDownClass(cls):