diff --git a/CHANGELOG.md b/CHANGELOG.md
index dab7928..41ddc0d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ For major (breaking) changes - version 3 and 2 see end of page.
 
 | Version        | Date           | Comment  |
 | -------------- | -------------- | -------- |
+| 4.0.14         | 2019-03-01     | updated typescript typings |
 | 4.0.13         | 2019-03-01     | `diskLayout()` added device (/dev/sda...) linux, mac |
 | 4.0.12         | 2019-03-01     | `diskLayout()` linux rewritten - better detection |
 | 4.0.11         | 2019-02-23     | `users()` fix windows (time), added @ts-check |
diff --git a/docs/history.html b/docs/history.html
index c22810c..137b534 100644
--- a/docs/history.html
+++ b/docs/history.html
@@ -80,6 +80,11 @@
                   </tr>
                 </thead>
                 <tbody>
+                  <tr>
+                    <th scope="row">4.0.14</th>
+                    <td>2019-03-01</td>
+                    <td><span class="code">updated typescript typings</td>
+                  </tr>
                   <tr>
                     <th scope="row">4.0.13</th>
                     <td>2019-03-01</td>
diff --git a/docs/index.html b/docs/index.html
index df4e23c..faf0f08 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -170,7 +170,7 @@
       <img class="logo" src="assets/logo.png">
       <div class="title">systeminformation</div>
       <div class="subtitle"><span id="typed"></span></div>
-      <div class="version">Current Version: <span id="version">4.0.13</span></div>
+      <div class="version">Current Version: <span id="version">4.0.14</span></div>
       <button class="btn btn-light" onclick="location.href='https://github.com/sebhildebrandt/systeminformation'">View on Github <i class=" fab fa-github"></i></button>
     </div>
     <div class="down">
diff --git a/lib/index.d.ts b/lib/index.d.ts
index 9f2b513..2549724 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -120,6 +120,7 @@ export namespace Systeminformation {
   }
 
   interface DiskLayoutData {
+    device: string;
     type: string;
     name: string;
     vendor: string;