diff --git a/extensions/zalouser/src/channel.ts b/extensions/zalouser/src/channel.ts
index a2e3435f7..79e3ae747 100644
--- a/extensions/zalouser/src/channel.ts
+++ b/extensions/zalouser/src/channel.ts
@@ -605,6 +605,8 @@ export const zalouserPlugin: ChannelPlugin<ResolvedZalouserAccount> = {
   },
   outbound: {
     deliveryMode: "direct",
+    chunker: (text, limit) => getZalouserRuntime().channel.text.chunkMarkdownText(text, limit),
+    chunkerMode: "markdown",
     sendPayload: async (ctx) =>
       await sendPayloadWithChunkedTextAndMedia({
         ctx,