diff --git a/src/infra/heartbeat-runner.ts b/src/infra/heartbeat-runner.ts
index b015a0896..25b5aab8e 100644
--- a/src/infra/heartbeat-runner.ts
+++ b/src/infra/heartbeat-runner.ts
@@ -22,6 +22,7 @@ import { createSubsystemLogger } from "../logging.js";
 import { getQueueSize } from "../process/command-queue.js";
 import { webAuthExists } from "../providers/web/index.js";
 import { defaultRuntime, type RuntimeEnv } from "../runtime.js";
+import { resolveDefaultTelegramAccountId } from "../telegram/accounts.js";
 import { getActiveWebListener } from "../web/active-listener.js";
 import { emitHeartbeatEvent } from "./heartbeat-events.js";
 import {
@@ -315,10 +316,17 @@ export async function runHeartbeatOnce(opts: {
       }
     }
 
+    // Resolve accountId for providers that support multiple accounts
+    const accountId =
+      delivery.provider === "telegram"
+        ? resolveDefaultTelegramAccountId(cfg)
+        : undefined;
+
     await deliverOutboundPayloads({
       cfg,
       provider: delivery.provider,
       to: delivery.to,
+      accountId,
       payloads: [
         {
           text: normalized.text,