diff --git a/plugins/graphql/src/schema.gql b/plugins/graphql/src/schema.gql
index a03bdbc317..5568182f7f 100644
--- a/plugins/graphql/src/schema.gql
+++ b/plugins/graphql/src/schema.gql
@@ -7,5 +7,5 @@ type CatalogQuery {
 }
 
 type Query {
-  catalog: CatalogQuery
+  catalog: CatalogQuery!
 }