diff --git a/tests/test_image.py b/tests/test_image.py
index cbe526e..c5ed1d7 100644
--- a/tests/test_image.py
+++ b/tests/test_image.py
@@ -737,7 +737,7 @@ def test_confluence_xml_secure_properties_default(docker_cli, image, version, se
 def test_confluence_xml_secure_properties_override(docker_cli, image, version, overrideVar):
     environment = {
         'CONFLUENCE_VERSION': version,
-        'ATL_SECURE_PROPERTIES' overrideVar,
+        'ATL_SECURE_PROPERTIES': overrideVar,
     }
     container = run_image(docker_cli, image, environment=environment)