diff --git a/types/eslint/eslint-tests.ts b/types/eslint/eslint-tests.ts
index f6347dc917..fa444d84c7 100644
--- a/types/eslint/eslint-tests.ts
+++ b/types/eslint/eslint-tests.ts
@@ -389,18 +389,23 @@ linter.verify(SOURCE, { rules: { 'no-unused-vars': [2, { vars: 'all' }] } }, 'te
 linter.verify(SOURCE, { rules: { 'no-console': 1 } }, 'test.js');
 linter.verify(SOURCE, { rules: { 'no-console': 0 } }, 'test.js');
 linter.verify(SOURCE, { rules: { 'no-console': 'error' } }, 'test.js');
-linter.verify(SOURCE, {
-    rules: { 'no-console': 'error' },
-    overrides: [
-        {
-            excludedFiles: ['*-test.js', '*.spec.js'],
-            files: ['*-test.js', '*.spec.js'],
-            rules: {
-                'no-unused-expressions': 'off'
-            }
-        }
-    ]
-}, 'test.js');
+linter.verify(
+    SOURCE,
+    {
+        rules: { 'no-console': 'error' },
+        overrides: [
+            {
+                extends: ['eslint-config-bad-guy'],
+                excludedFiles: ['*-test.js', '*.spec.js'],
+                files: ['*-test.js', '*.spec.js'],
+                rules: {
+                    'no-unused-expressions': 'off',
+                },
+            },
+        ],
+    },
+    'test.js',
+);
 linter.verify(SOURCE, { rules: { 'no-console': 'warn' } }, 'test.js');
 linter.verify(SOURCE, { rules: { 'no-console': 'off' } }, 'test.js');
 
diff --git a/types/eslint/index.d.ts b/types/eslint/index.d.ts
index 37b8ae43f3..7e547b3ae0 100644
--- a/types/eslint/index.d.ts
+++ b/types/eslint/index.d.ts
@@ -385,11 +385,12 @@ export namespace Linter {
     }
     interface HasRules {
         rules?: {
-            [name: string]: RuleLevel | RuleLevelAndOptions
+            [name: string]: RuleLevel | RuleLevelAndOptions;
         };
     }
 
     interface RuleOverride extends HasRules {
+        extends?: string | string[];
         excludedFiles?: string[];
         files?: string[];
     }
@@ -452,11 +453,13 @@ export namespace Linter {
         messages: LintMessage[];
     }
 
-    type ParserModule = {
-        parse(text: string, options?: any): AST.Program;
-    } | {
-        parseForESLint(text: string, options?: any): ESLintParseResult;
-    };
+    type ParserModule =
+        | {
+              parse(text: string, options?: any): AST.Program;
+          }
+        | {
+              parseForESLint(text: string, options?: any): ESLintParseResult;
+          };
 
     interface ESLintParseResult {
         ast: AST.Program;
diff --git a/types/eslint/ts3.1/eslint-tests.ts b/types/eslint/ts3.1/eslint-tests.ts
index f6347dc917..fa444d84c7 100644
--- a/types/eslint/ts3.1/eslint-tests.ts
+++ b/types/eslint/ts3.1/eslint-tests.ts
@@ -389,18 +389,23 @@ linter.verify(SOURCE, { rules: { 'no-unused-vars': [2, { vars: 'all' }] } }, 'te
 linter.verify(SOURCE, { rules: { 'no-console': 1 } }, 'test.js');
 linter.verify(SOURCE, { rules: { 'no-console': 0 } }, 'test.js');
 linter.verify(SOURCE, { rules: { 'no-console': 'error' } }, 'test.js');
-linter.verify(SOURCE, {
-    rules: { 'no-console': 'error' },
-    overrides: [
-        {
-            excludedFiles: ['*-test.js', '*.spec.js'],
-            files: ['*-test.js', '*.spec.js'],
-            rules: {
-                'no-unused-expressions': 'off'
-            }
-        }
-    ]
-}, 'test.js');
+linter.verify(
+    SOURCE,
+    {
+        rules: { 'no-console': 'error' },
+        overrides: [
+            {
+                extends: ['eslint-config-bad-guy'],
+                excludedFiles: ['*-test.js', '*.spec.js'],
+                files: ['*-test.js', '*.spec.js'],
+                rules: {
+                    'no-unused-expressions': 'off',
+                },
+            },
+        ],
+    },
+    'test.js',
+);
 linter.verify(SOURCE, { rules: { 'no-console': 'warn' } }, 'test.js');
 linter.verify(SOURCE, { rules: { 'no-console': 'off' } }, 'test.js');
 
diff --git a/types/eslint/ts3.1/index.d.ts b/types/eslint/ts3.1/index.d.ts
index 686a4c4ebc..a8db6d6cf0 100644
--- a/types/eslint/ts3.1/index.d.ts
+++ b/types/eslint/ts3.1/index.d.ts
@@ -386,6 +386,7 @@ export namespace Linter {
     }
 
     interface RuleOverride<Rules extends RulesRecord = RulesRecord> extends HasRules<Rules> {
+        extends?: string | string[];
         excludedFiles?: string[];
         files?: string[];
     }
@@ -448,11 +449,13 @@ export namespace Linter {
         messages: LintMessage[];
     }
 
-    type ParserModule = {
-        parse(text: string, options?: any): AST.Program;
-    } | {
-        parseForESLint(text: string, options?: any): ESLintParseResult;
-    };
+    type ParserModule =
+        | {
+              parse(text: string, options?: any): AST.Program;
+          }
+        | {
+              parseForESLint(text: string, options?: any): ESLintParseResult;
+          };
 
     interface ESLintParseResult {
         ast: AST.Program;