diff --git a/packages/discord.js/src/util/Transformers.js b/packages/discord.js/src/util/Transformers.js
index 63edd0689549..6b096dfc9f9e 100644
--- a/packages/discord.js/src/util/Transformers.js
+++ b/packages/discord.js/src/util/Transformers.js
@@ -1,5 +1,6 @@
 'use strict';
 
+const { isJSONEncodable } = require('@discordjs/util');
 const snakeCase = require('lodash.snakecase');
 
 /**
@@ -10,6 +11,7 @@ const snakeCase = require('lodash.snakecase');
 function toSnakeCase(obj) {
   if (typeof obj !== 'object' || !obj) return obj;
   if (obj instanceof Date) return obj;
+  if (isJSONEncodable(obj)) return toSnakeCase(obj.toJSON());
   if (Array.isArray(obj)) return obj.map(toSnakeCase);
   return Object.fromEntries(Object.entries(obj).map(([key, value]) => [snakeCase(key), toSnakeCase(value)]));
 }