diff --git a/src/repositories/product-projection.ts b/src/repositories/product-projection.ts
index 561a3a8b..f9bd41ca 100644
--- a/src/repositories/product-projection.ts
+++ b/src/repositories/product-projection.ts
@@ -50,7 +50,9 @@ export class ProductProjectionRepository extends AbstractResourceRepository {
   }
 
   search(context: RepositoryContext, query: ParsedQs) {
-    const expand = query.expand ? query.expand as string | string[] : undefined
+    const expand = query.expand
+      ? (query.expand as string | string[])
+      : undefined
     const filter = (query['filter.query'] ?? query.filter) as any
     const wherePredicate = filter ? parseFilterExpression(filter) : undefined