diff --git a/packages/api-server/src/cache/constant.ts b/packages/api-server/src/cache/constant.ts
index 550a0682..a8145a53 100644
--- a/packages/api-server/src/cache/constant.ts
+++ b/packages/api-server/src/cache/constant.ts
@@ -4,4 +4,4 @@ export const CACHE_EXPIRED_TIME_MILSECS = 5 * 60 * 1000; // milsec, default 5 mi
 export const MAX_FILTER_TOPIC_ARRAY_LENGTH = 20;
 
 // The Cache Key Prfixs
-export const GW_RPC_KEY = 'gwRPC';
\ No newline at end of file
+export const GW_RPC_KEY = "gwRPC";