diff --git a/package.json b/package.json
index 315a5db..c82bb83 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@samchon/openapi",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "OpenAPI definitions and converters for 'typia' and 'nestia'.",
   "main": "./lib/index.js",
   "module": "./lib/index.mjs",
diff --git a/src/converters/MigrateRouteConverter.ts b/src/converters/MigrateRouteConverter.ts
index 362a2c4..3f99793 100644
--- a/src/converters/MigrateRouteConverter.ts
+++ b/src/converters/MigrateRouteConverter.ts
@@ -139,7 +139,7 @@ export namespace MigrateRouteConverter {
           ]),
           required: [
             ...primitives.filter((p) => p.required).map((p) => p.name!),
-            ...(dto ? dto.required ?? [] : []),
+            ...(dto ? (dto.required ?? []) : []),
           ],
         },
       ];
@@ -368,7 +368,7 @@ export namespace MigrateRouteConverter {
       );
       if (json) {
         const { schema } = json[1];
-        return schema || from === "request"
+        return schema || from === "response"
           ? {
               type: "application/json",
               name: "body",
@@ -390,7 +390,7 @@ export namespace MigrateRouteConverter {
       );
       if (query) {
         const { schema } = query[1];
-        return schema || from === "request"
+        return schema || from === "response"
           ? {
               type: "application/x-www-form-urlencoded",
               name: "body",
diff --git a/test/controllers/AppController.ts b/test/controllers/AppController.ts
index 74a402a..2dd2833 100644
--- a/test/controllers/AppController.ts
+++ b/test/controllers/AppController.ts
@@ -93,6 +93,9 @@ export class AppController {
       },
     };
   }
+
+  @TypedRoute.Get("nothing")
+  public nothing(): void {}
 }
 
 interface IQuery {
diff --git a/test/features/migrate/test_http_migrate_route_return_type_void.ts b/test/features/migrate/test_http_migrate_route_return_type_void.ts
new file mode 100644
index 0000000..d266bcc
--- /dev/null
+++ b/test/features/migrate/test_http_migrate_route_return_type_void.ts
@@ -0,0 +1,18 @@
+import { TestValidator } from "@nestia/e2e";
+import {
+  HttpMigration,
+  IHttpMigrateApplication,
+  IHttpMigrateRoute,
+  OpenApi,
+} from "@samchon/openapi";
+
+import swagger from "../../swagger.json";
+
+export const test_http_migrate_route_return_type_void = (): void => {
+  const document: OpenApi.IDocument = OpenApi.convert(swagger as any);
+  const app: IHttpMigrateApplication = HttpMigration.application(document);
+  const route: IHttpMigrateRoute | undefined = app.routes.find(
+    (r) => r.path === "/nothing" && r.method === "get",
+  );
+  TestValidator.equals("exists")(!!route)(true);
+};
diff --git a/test/swagger.json b/test/swagger.json
index 34070e2..6e83b2b 100644
--- a/test/swagger.json
+++ b/test/swagger.json
@@ -7,7 +7,7 @@
     }
   ],
   "info": {
-    "version": "1.0.5",
+    "version": "1.1.1-dev.20241008-2",
     "title": "@samchon/openapi",
     "description": "OpenAPI definitions and converters for 'typia' and 'nestia'.",
     "license": {
@@ -374,6 +374,20 @@
           }
         }
       }
+    },
+    "/nothing": {
+      "get": {
+        "tags": [],
+        "parameters": [],
+        "responses": {
+          "200": {
+            "description": "",
+            "content": {
+              "application/json": {}
+            }
+          }
+        }
+      }
     }
   },
   "components": {