diff --git a/axe.d.ts b/axe.d.ts
index eb285d9c2c..c4a4d49d7c 100644
--- a/axe.d.ts
+++ b/axe.d.ts
@@ -155,6 +155,13 @@ declare namespace axe {
 		}[];
 		cleanup?(callback: Function): void;
 	}
+	interface RuleMetadata {
+		ruleId: string;
+		description: string;
+		help: string;
+		helpUrl: string;
+		tags: string[];
+	}
 
 	let plugins: any;
 
@@ -203,7 +210,7 @@ declare namespace axe {
 	 * @param  {Array}  tags  Optional array of tags
 	 * @return {Array}  Array of rules
 	 */
-	function getRules(tags?: string[]): Object[];
+	function getRules(tags?: string[]): RuleMetadata[];
 
 	/**
 	 * Restores the default axe configuration
diff --git a/doc/rule-descriptions.md b/doc/rule-descriptions.md
index 65323ef344..fbe7e7ca90 100644
--- a/doc/rule-descriptions.md
+++ b/doc/rule-descriptions.md
@@ -74,7 +74,7 @@
 | role-img-alt                        | Ensures [role='img'] elements have alternate text                                                                | Serious            | cat.text-alternatives, wcag2a, wcag111, section508, section508.22.a              | true               | true     | false        |
 | scope-attr-valid                    | Ensures the scope attribute is used correctly on tables                                                                    | Moderate, Critical | cat.tables, best-practice                                                        | true               | true     | false        |
 | scrollable-region-focusable         | Elements that have scrollable content should be accessible by keyboard                                                     | Moderate           | wcag2a, wcag211                                                                  | true               | true     | false        |
-| server-side-image-map               | Ensures that server-side image maps are not used                                                                           | Minor              | cat.text-alternatives, wcag2a, wcag211, section508, section508.22.f              | true               | true     | false        |
+| server-side-image-map               | Ensures that server-side image maps are not used                                                                           | Minor              | cat.text-alternatives, wcag2a, wcag211, section508, section508.22.f              | true               | false    | true         |
 | skip-link                           | Ensure all skip links have a focusable target                                                                              | Moderate           | cat.keyboard, best-practice                                                      | true               | true     | true         |
 | tabindex                            | Ensures tabindex attribute values are not greater than 0                                                                   | Serious            | cat.keyboard, best-practice                                                      | true               | true     | false        |
 | table-duplicate-name                | Ensure that tables do not have the same summary and caption                                                                | Minor              | cat.tables, best-practice                                                        | true               | true     | false        |
diff --git a/typings/axe-core/axe-core-tests.ts b/typings/axe-core/axe-core-tests.ts
index 09866773aa..11b27ac7e4 100644
--- a/typings/axe-core/axe-core-tests.ts
+++ b/typings/axe-core/axe-core-tests.ts
@@ -111,6 +111,11 @@ axe.reset();
 axe.getRules(['wcag2aa']);
 typeof axe.getRules() === 'object';
 
+const rules = axe.getRules();
+rules.forEach(rule => {
+	rule.ruleId.substr(1234);
+});
+
 // Plugins
 var pluginSrc: axe.AxePlugin = {
 	id: 'doStuff',