diff --git a/const.js b/const.js
index 48ae886..0fb4bca 100644
--- a/const.js
+++ b/const.js
@@ -3,7 +3,10 @@ const PROTOCOL_CATEGORIES = ['money market', 'yield strategy', 'liquid locker',
 
 const DESCRIPTION_MAXIMUM_CHARACTERS = 120;
 
+const SUBTITLE_MAXIMUM_CHARACTERS = 12;
+
 module.exports = {
   PROTOCOL_CATEGORIES,
   DESCRIPTION_MAXIMUM_CHARACTERS,
+  SUBTITLE_MAXIMUM_CHARACTERS,
 }
\ No newline at end of file
diff --git a/merge-config.js b/merge-config.js
index d2cfb23..7d458c0 100644
--- a/merge-config.js
+++ b/merge-config.js
@@ -70,12 +70,13 @@ function formatProtocolConfig(config) {
 function formatMetadataAssets(assets) {
   const result = [];
   for (const asset of (assets ?? [])) {
-    const {chainId, address, integrationUrl, description} = asset;
+    const {chainId, address, integrationUrl, description, subtitle} = asset;
     result.push({
       chainId,
       address: address.toLowerCase(),
       integrationUrl,
       description,
+      subtitle,
     })
   }
 
diff --git a/validate-config.js b/validate-config.js
index f95e7bf..f1c2678 100644
--- a/validate-config.js
+++ b/validate-config.js
@@ -1,7 +1,7 @@
 const fs = require('fs');
 const path = require('path');
 const yaml = require('js-yaml');
-const {PROTOCOL_CATEGORIES, DESCRIPTION_MAXIMUM_CHARACTERS} = require("./const");
+const {PROTOCOL_CATEGORIES, DESCRIPTION_MAXIMUM_CHARACTERS, SUBTITLE_MAXIMUM_CHARACTERS} = require("./const");
 
 const LIMIT_ICON_KB_SIZE = 20;
 const BUFFER_LIMIT_ICON_KB_SIZE = LIMIT_ICON_KB_SIZE + 1;
@@ -34,6 +34,22 @@ function validateDescription(info) {
   }
 }
 
+function validateSubtitle(info) {
+  const {protocol, field, index, subtitle} = info;
+
+  if (subtitle === undefined) {
+    return;
+  }
+
+  if (!mustBeNonEmptyString(subtitle)) {
+    throw new Error(`protocol ${protocol}: metadata ${field} 'subtitle' is not an non-empty string`);
+  }
+
+  if (subtitle.length > SUBTITLE_MAXIMUM_CHARACTERS) {
+    throw new Error(`protocol ${protocol}: metadata ${field} 'subtitle' too long at index ${index}`);
+  }
+}
+
 async function main() {
   const CHANGED_PROTOCOLS = process.env.CHANGED_PROTOCOLS;
   const GET_ASSET_LIST_URL = process.env.GET_ASSET_LIST_URL;
@@ -155,7 +171,7 @@ function checkMetadataField(data, protocol, field, assetMap) {
 
   for (let index = 0; index < data.length; index ++) {
     const item = data[index];
-    const {chainId, address, description, integrationUrl} = item;
+    const {chainId, address, description, integrationUrl, subtitle} = item;
 
     if (typeof chainId !== 'number') {
       throw new Error(`protocol ${protocol}: metadata ${field} invalid 'chainId' field at index ${index}`);
@@ -171,6 +187,8 @@ function checkMetadataField(data, protocol, field, assetMap) {
 
     validateDescription({protocol, field, index, description});
 
+    validateSubtitle({protocol, field, index, subtitle});
+
     if (!mustBeNonEmptyString(integrationUrl)) {
       throw new Error(`protocol ${protocol}: metadata ${field} invalid 'integrationUrl' field at index ${index}`);
     }