diff --git a/types/graphql/error/formatError.d.ts b/types/graphql/error/formatError.d.ts
index 712c68c77b..5b974d5461 100644
--- a/types/graphql/error/formatError.d.ts
+++ b/types/graphql/error/formatError.d.ts
@@ -8,11 +8,11 @@ export function formatError(error: GraphQLError): GraphQLFormattedError;
 
 export type GraphQLFormattedError = {
     message: string,
-    locations: Array<GraphQLErrorLocation>,
-    path: Array<string | number>
+    locations?: Array<GraphQLErrorLocation>,
+    path?: Array<string | number>
 };
 
 export type GraphQLErrorLocation = {
     line: number,
     column: number
-};
\ No newline at end of file
+};