diff --git a/ghost/collections/src/CollectionsService.ts b/ghost/collections/src/CollectionsService.ts
index e5bdc3076a..b24eafff57 100644
--- a/ghost/collections/src/CollectionsService.ts
+++ b/ghost/collections/src/CollectionsService.ts
@@ -196,7 +196,7 @@ export class CollectionsService {
 
         collection.addPost(post);
 
-        this.collectionsRepository.save(collection);
+        await this.collectionsRepository.save(collection);
 
         return this.toDTO(collection);
     }