diff --git a/playground/eslint.d.ts b/playground/eslint.d.ts
index 6ce6ebf2a..4957c0fb3 100644
--- a/playground/eslint.d.ts
+++ b/playground/eslint.d.ts
@@ -1,10 +1,17 @@
 declare module 'eslint-plugin-mocha' {
-    export default {
+    import type { ESLint, Linter } from 'eslint';
+
+    interface Configs {
         configs: {
+            recommended: Linter.Config;
+            all: Linter.Config;
             flat: {
-                all: unknown,
-                recommended: unknown,
-            },
-        },
-    };
+                recommended: Linter.FlatConfig;
+                all: Linter.FlatConfig;
+            };
+        };
+    }
+
+    const plugin: Configs & ESLint.Plugin;
+    export default plugin;
 }
diff --git a/playground/package.json b/playground/package.json
index 0558fe892..04f416220 100644
--- a/playground/package.json
+++ b/playground/package.json
@@ -33,6 +33,7 @@
   "devDependencies": {
     "@peculiar/webcrypto": "^1.4.5",
     "@types/codemirror": "^5.60.15",
+    "@types/eslint": "^8.56.5",
     "@types/eslint__js": "^8.42.3",
     "@types/node": "^20.11.24",
     "@types/pako": "^2.0.3",