diff --git a/frontend/src/routes/_oh.app/hooks/use-handle-ws-events.ts b/frontend/src/routes/_oh.app/hooks/use-handle-ws-events.ts
index 43353ed9f293..70192576155b 100644
--- a/frontend/src/routes/_oh.app/hooks/use-handle-ws-events.ts
+++ b/frontend/src/routes/_oh.app/hooks/use-handle-ws-events.ts
@@ -58,6 +58,10 @@ export const useHandleWSEvents = () => {
         addErrorMessage({
           id: event.extras?.error_id,
           message: event.message,
+          content: event.message,
+          type: "error",
+          sender: "assistant",
+          timestamp: new Date().toISOString(),
         }),
       );
     }
diff --git a/frontend/src/services/actions.ts b/frontend/src/services/actions.ts
index 3dca2c12f86e..956b0df3cd2e 100644
--- a/frontend/src/services/actions.ts
+++ b/frontend/src/services/actions.ts
@@ -173,6 +173,10 @@ export function handleAssistantMessage(message: Record<string, unknown>) {
     store.dispatch(
       addErrorMessage({
         message: "Unknown message type received",
+        content: "Unknown message type received",
+        type: "error",
+        sender: "assistant",
+        timestamp: new Date().toISOString(),
       }),
     );
   }