diff --git a/denops/dpp/base/config.ts b/denops/dpp/base/config.ts
index fc0f0e1..8524160 100644
--- a/denops/dpp/base/config.ts
+++ b/denops/dpp/base/config.ts
@@ -1,6 +1,6 @@
 import { ContextBuilder } from "../context.ts";
 import { Denops } from "../deps.ts";
-import { Dpp } from "../types.ts";
+import { Dpp, Plugin } from "../types.ts";
 
 export type ConfigArguments = {
   denops: Denops;
@@ -12,5 +12,7 @@ export type ConfigArguments = {
 export abstract class BaseConfig {
   apiVersion = 1;
 
-  config(_args: ConfigArguments): void | Promise<void> {}
+  config(_args: ConfigArguments): Plugin[] | Promise<Plugin[]> {
+    return [];
+  }
 }
diff --git a/denops/dpp/types.ts b/denops/dpp/types.ts
index b944b54..d8a87d2 100644
--- a/denops/dpp/types.ts
+++ b/denops/dpp/types.ts
@@ -66,3 +66,7 @@ export type Action<Params extends BaseActionParams> = {
   description: string;
   callback: ActionCallback<Params>;
 };
+
+export type Plugin = {
+  name: string;
+};