diff --git a/packages/framework-core/src/services/graphql/graphql-type-informer.ts b/packages/framework-core/src/services/graphql/graphql-type-informer.ts
index dc6039db8..2beade27d 100644
--- a/packages/framework-core/src/services/graphql/graphql-type-informer.ts
+++ b/packages/framework-core/src/services/graphql/graphql-type-informer.ts
@@ -114,7 +114,7 @@ export class GraphQLTypeInformer {
       return new GraphQLList(this.toInputType(graphQLType.ofType))
     }
     if (graphQLType instanceof GraphQLNonNull) {
-      return new GraphQLNonNull(graphQLType.ofType)
+      return new GraphQLNonNull(this.toInputType(graphQLType.ofType))
     }
     if (graphQLType instanceof GraphQLObjectType) {
       return new GraphQLInputObjectType({