diff --git a/packages/backend-core/src/redis/redlockImpl.ts b/packages/backend-core/src/redis/redlockImpl.ts
index a7b2e2b4c6..4de2516ab2 100644
--- a/packages/backend-core/src/redis/redlockImpl.ts
+++ b/packages/backend-core/src/redis/redlockImpl.ts
@@ -109,7 +109,7 @@ export async function doWithLock<T>(
 ): Promise<RedlockExecution<T>> {
   const redlock = await getClient(opts.type, opts.customOptions)
   let lock: Redlock.Lock | undefined
-  let timeout: NodeJS.Timeout | undefined
+  let timeout
   try {
     const name = getLockName(opts)