diff --git a/src/config/schema/background-task.ts b/src/config/schema/background-task.ts
index f53a67f6c..0945d7595 100644
--- a/src/config/schema/background-task.ts
+++ b/src/config/schema/background-task.ts
@@ -8,7 +8,7 @@ export const BackgroundTaskConfigSchema = z.object({
   maxDescendants: z.number().int().min(1).optional(),
   /** Stale timeout in milliseconds - interrupt tasks with no activity for this duration (default: 180000 = 3 minutes, minimum: 60000 = 1 minute) */
   staleTimeoutMs: z.number().min(60000).optional(),
-  /** Timeout for tasks that never received any progress update, falling back to startedAt (default: 600000 = 10 minutes, minimum: 60000 = 1 minute) */
+  /** Timeout for tasks that never received any progress update, falling back to startedAt (default: 1800000 = 30 minutes, minimum: 60000 = 1 minute) */
   messageStalenessTimeoutMs: z.number().min(60000).optional(),
   syncPollTimeoutMs: z.number().min(60000).optional(),
 })