diff --git a/desktop/src/app/services/api.service.ts b/desktop/src/app/services/api.service.ts
index 1aaad3c..ff9183c 100644
--- a/desktop/src/app/services/api.service.ts
+++ b/desktop/src/app/services/api.service.ts
@@ -23,6 +23,7 @@ export interface HealthInfo {
   uptime_secs: number;
   active_sessions: number;
   connected_agents: number;
+  connected_viewers: number;
   version: string;
 }