diff --git a/src/templates/core/OpenAPI.hbs b/src/templates/core/OpenAPI.hbs
index fc9045b2..270f0bfc 100644
--- a/src/templates/core/OpenAPI.hbs
+++ b/src/templates/core/OpenAPI.hbs
@@ -10,7 +10,6 @@ type Config = {
     TOKEN?: string | Resolver<string>;
     USERNAME?: string | Resolver<string>;
     PASSWORD?: string | Resolver<string>;
-    DOMAIN?: string | Resolver<string>;
     HEADERS?: Headers | Resolver<Headers>;
 }
 
@@ -21,6 +20,5 @@ export const OpenAPI: Config = {
     TOKEN: undefined,
     USERNAME: undefined,
     PASSWORD: undefined,
-    DOMAIN: undefined,
     HEADERS: undefined,
 };