diff --git a/tests/conftest.py b/tests/conftest.py
index 176089d5691..c799999b20f 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -193,10 +193,14 @@ _HERMES_BEHAVIORAL_VARS = frozenset({
     # the real ~/.hermes/kanban.db instead of the per-test HERMES_HOME.
     "HERMES_KANBAN_DB",
     "HERMES_KANBAN_BOARD",
+    "HERMES_KANBAN_HOME",
     "HERMES_KANBAN_WORKSPACES_ROOT",
     "HERMES_KANBAN_LOGS_ROOT",
     "HERMES_KANBAN_TASK",
     "HERMES_KANBAN_WORKSPACE",
+    "HERMES_KANBAN_RUN_ID",
+    "HERMES_KANBAN_CLAIM_LOCK",
+    "HERMES_KANBAN_DISPATCH_IN_GATEWAY",
     "HERMES_TENANT",
     "TERMINAL_CWD",
     "TERMINAL_ENV",