diff --git a/packages/schema/src/makeExecutableSchema.ts b/packages/schema/src/makeExecutableSchema.ts
index 8da016401a1..13e9ef383c8 100644
--- a/packages/schema/src/makeExecutableSchema.ts
+++ b/packages/schema/src/makeExecutableSchema.ts
@@ -22,7 +22,7 @@ export function makeExecutableSchema<TContext = any>({
   schemaTransforms = [],
   parseOptions = {},
   inheritResolversFromInterfaces = false,
-  pruningOptions,
+  pruningOptions = {},
 }: IExecutableSchemaDefinition<TContext>) {
   // Validate and clean up arguments
   if (typeof resolverValidationOptions !== 'object') {
diff --git a/packages/schema/src/types.ts b/packages/schema/src/types.ts
index 69ba0a9ead7..6b58ba801be 100644
--- a/packages/schema/src/types.ts
+++ b/packages/schema/src/types.ts
@@ -24,5 +24,5 @@ export interface IExecutableSchemaDefinition<TContext = any> {
   schemaTransforms?: Array<SchemaTransform>;
   parseOptions?: GraphQLParseOptions;
   inheritResolversFromInterfaces?: boolean;
-  pruningOptions: PruneSchemaOptions;
+  pruningOptions?: PruneSchemaOptions;
 }