diff --git a/src/db/mod.ts b/src/db/mod.ts
index da80054..7e0c739 100644
--- a/src/db/mod.ts
+++ b/src/db/mod.ts
@@ -105,7 +105,7 @@ export class Db {
 	async *#list<T extends Ressource>(
 		type: RessourceType<T>,
 		Builder: RessourceBuilder<T>,
-		filter: (entry: T) => boolean,
+		filter: (entry: T) => boolean | Promise<boolean>,
 	): AsyncGenerator<T, void, void> {
 		const list = this.#kv.list<RessourceJson<T>>({
 			prefix: [this.prefix.ressource, type],
@@ -114,7 +114,7 @@ export class Db {
 			const value = entry.value
 			//@ts-expect-error Type union of Ressource types for Builder
 			const ressource = Builder.fromJSON(value) as T
-			if (filter(ressource)) {
+			if (await filter(ressource)) {
 				yield ressource
 			}
 		}