diff --git a/src/actions/market.ts b/src/actions/market.ts
index 1c5a3c8..ac30794 100644
--- a/src/actions/market.ts
+++ b/src/actions/market.ts
@@ -5,7 +5,7 @@ import { assets } from '@/db/schema';
 import { eq } from 'drizzle-orm';
 import { revalidatePath } from 'next/cache';
 
-export function getTencentSymbol(asset: { symbol: string; exchange: string | null }): string {
+function getTencentSymbol(asset: { symbol: string; exchange: string | null }): string {
   const cleanSymbol = asset.symbol.trim().toUpperCase().replace(/[^0-9A-Z]/g, '');
 
   switch (asset.exchange) {