diff --git a/src/source/build-numbers.jd b/src/source/build-numbers.jd
index f7981c2..3c190bd 100644
--- a/src/source/build-numbers.jd
+++ b/src/source/build-numbers.jd
@@ -130,6 +130,11 @@
 <td>4.3.x</td>
 <td>API level 18</td>
 </tr>
+<tr>
+<td>KitKat</td>
+<td>4.4</td>
+<td>API level 19</td>
+</tr>
 </tbody>
 </table>
 <p>Starting with Cupcake, individual builds are identified with a short
@@ -537,10 +542,16 @@
 <td>Latest Jelly Bean version, Nexus 7 (deb)</td>
 </tr>
 
+<tr>
+<td>KRT16M</td>
+<td>android-4.4_r1</td>
+<td>Initial KitKat version, Nexus 5 (hammerhead)</td>
+</tr>
+
 </tbody>
 </table>
 <p>The branches froyo, gingerbread, ics-mr0, ics-mr1, jb-dev,
-jb-mr1-dev, jb-mr1.1-dev, jb-mr2-dev
+jb-mr1-dev, jb-mr1.1-dev, jb-mr2-dev, kitkat-dev
 represent development
 branches that do not exactly match configurations that were tested
 by Google. They might contain a variety of changes in addition to
diff --git a/src/source/building-devices.jd b/src/source/building-devices.jd
index e1b912e..0fe8ff1 100644
--- a/src/source/building-devices.jd
+++ b/src/source/building-devices.jd
@@ -76,6 +76,11 @@
 </thead>
 <tbody>
 <tr>
+<td>hammerhead</td>
+<td>Press and hold both <em>Volume Up</em> and <em>Volume Down</em>, then press
+and hold <em>Power</em></td>
+</tr>
+<tr>
 <td>flo</td>
 <td>Press and hold <em>Volume Down</em>, then press and hold <em>Power</em></td>
 </tr>
@@ -193,6 +198,11 @@
 </thead>
 <tbody>
 <tr>
+<td>hammerhead</td>
+<td>android-4.4_r1</td>
+<td>aosp_hammerhead-userdebug</td>
+</tr>
+<tr>
 <td>flo</td>
 <td>android-4.3_r2.3</td>
 <td>aosp_flo-userdebug</td>