diff --git a/packages/backend/src/remote/activitypub/resolver.ts b/packages/backend/src/remote/activitypub/resolver.ts
index e4fdedac94..26ec4e8a69 100644
--- a/packages/backend/src/remote/activitypub/resolver.ts
+++ b/packages/backend/src/remote/activitypub/resolver.ts
@@ -32,9 +32,7 @@ export default class Resolver {
 	}
 
 	public async resolveCollection(value: string | IObject): Promise<ICollection | IOrderedCollection> {
-		const collection = typeof value === 'string'
-			? await this.resolve(value)
-			: value;
+		const collection = await this.resolve(value);
 
 		if (isCollectionOrOrderedCollection(collection)) {
 			return collection;