diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index 9539b5d2..37a87784 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -22,7 +22,7 @@ export interface GenericEndpointOption extends EndpointOptionBase, Record<string
 
 export type EndpointOption = HttpEndpointOption | GenericEndpointOption;
 
-export type WithEndpointOption = { endpointOption?: Partial<EndpointOption> };
+export type WithEndpointOption = { endpointOption?: EndpointOption };
 
 export interface NammamthamEndpoint {
   type: string;