diff --git a/packages/ipfs-core-types/src/stats/index.ts b/packages/ipfs-core-types/src/stats/index.ts
index 43e5f24401..dfd300b2c5 100644
--- a/packages/ipfs-core-types/src/stats/index.ts
+++ b/packages/ipfs-core-types/src/stats/index.ts
@@ -16,7 +16,7 @@ export interface BWOptions extends AbortOptions {
   peer?: string
   proto?: string
   poll?: boolean
-  interval?: number
+  interval?: number | string
 }
 
 export interface BWResult {