diff --git a/lib/keyboard-layout.d.ts b/lib/keyboard-layout.d.ts
new file mode 100644
index 0000000..2461713
--- /dev/null
+++ b/lib/keyboard-layout.d.ts
@@ -0,0 +1,41 @@
+declare module 'keyboard-layout' {
+    /**
+     * Returns characters for various modifier states based on a DOM 3
+     * KeyboardEvent.code value and the current system keyboard layout
+     */
+    export function getCurrentKeymap(): any;
+
+    /**
+     * Get the current keyboard layout
+     *
+     * @returns The identifier of the current layout based on the value returned
+     * by the operating system
+     */
+    export function getCurrentKeyboardLayout(): string;
+
+    /**
+     * Get the current keyboard language
+     *
+     * @returns The keyboard language
+     */
+    export function getCurrentKeyboardLanguage(): string;
+
+    /**
+     * List all installed keyboard languages
+     *
+     * @returns All keyboard languages
+     */
+    export function getInstalledKeyboardLanguages(): string[];
+    
+    /**
+     * Get the current keyboard layout, invoking the callback once immediately
+     * with the current layout value and then again next time it changes
+     */
+    export function observeCurrentKeyboardLayout(callback: Function): any;
+
+    /**
+     * Get the current keyboard layout, invoking the callback once the keyboard
+     * changes, not changing it for the current set upt
+     */
+    export function onDidChangeCurrentKeyboardLayout(callback: Function): any;
+}
diff --git a/package.json b/package.json
index 250f481..ac51c17 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "2.0.14",
   "description": "Read and observe the current keyboard layout on OS X.",
   "main": "./lib/keyboard-layout",
+  "types": "./lib/keyboard-layout.d.ts",
   "scripts": {
     "test": "jasmine-focused --captureExceptions --forceexit spec"
   },