diff --git a/backend/src/api/rbf-cache.ts b/backend/src/api/rbf-cache.ts
index b5592252c..3f39cd58e 100644
--- a/backend/src/api/rbf-cache.ts
+++ b/backend/src/api/rbf-cache.ts
@@ -53,7 +53,7 @@ class RbfCache {
   private expiring: Map<string, number> = new Map();
   private cacheQueue: CacheEvent[] = [];
 
-  constructor() {
+  public init(): void {
     setInterval(this.cleanup.bind(this), 1000 * 60 * 10);
   }
 
diff --git a/backend/src/index.ts b/backend/src/index.ts
index 9d0fa07f5..fc6f655dc 100644
--- a/backend/src/index.ts
+++ b/backend/src/index.ts
@@ -43,6 +43,7 @@ import { AxiosError } from 'axios';
 import v8 from 'v8';
 import { formatBytes, getBytesUnit } from './utils/format';
 import redisCache from './api/redis-cache';
+import rbfCache from './api/rbf-cache';
 
 class Server {
   private wss: WebSocket.Server | undefined;
@@ -107,6 +108,8 @@ class Server {
       }
     }
 
+    rbfCache.init();
+
     this.app
       .use((req: Request, res: Response, next: NextFunction) => {
         res.setHeader('Access-Control-Allow-Origin', '*');