diff --git a/src/flat-config/index.d.ts b/src/flat-config/index.d.ts
index 78c58a03..5a4482ee 100644
--- a/src/flat-config/index.d.ts
+++ b/src/flat-config/index.d.ts
@@ -55,6 +55,13 @@ export interface FlatESLintConfigItem {
    * @see [Configuring rules](https://eslint.org/docs/latest/user-guide/configuring/configuration-files-new#configuring-rules)
    */
   rules?: Rules;
+
+  /**
+   * An object containing name-value pairs of information that should be available to all rules.
+   *
+   * @see [Configuring shared settings](https://eslint.org/docs/latest/user-guide/configuring/configuration-files-new#configuring-shared-settings)
+   */
+  settings?: Record<string, any>;
 }
 
 /**
diff --git a/tests/define.test-d.ts b/tests/define.test-d.ts
index 1a3c1da4..969d9ad8 100644
--- a/tests/define.test-d.ts
+++ b/tests/define.test-d.ts
@@ -41,6 +41,7 @@ describe('define', () => {
           ignores: [],
           plugins: {},
           rules: {},
+          settings: {},
         },
       ]),
     ).toEqualTypeOf<FlatESLintConfig[]>();