diff --git a/src/ims/element/incident/incidents/_incidents.py b/src/ims/element/incident/incidents/_incidents.py
index 56a64f690..201b3d2b2 100644
--- a/src/ims/element/incident/incidents/_incidents.py
+++ b/src/ims/element/incident/incidents/_incidents.py
@@ -79,5 +79,4 @@ async def incident_types(
     ) -> KleinRenderable:
         types = await self.config.store.incidentTypes()
         types = sorted(t for t in types)
-        types = tuple(t for t in types)
         return jsonTextFromObject(types)