diff --git a/android/AndroidManifest.xml b/android/AndroidManifest.xml
index 449e2adb98..97214b1be1 100644
--- a/android/AndroidManifest.xml
+++ b/android/AndroidManifest.xml
@@ -17,6 +17,7 @@
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK"/>
 
     <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:debuggable="true">
         <activity android:name=".MWMActivity"
diff --git a/android/src/com/mapswithme/maps/MWMActivity.java b/android/src/com/mapswithme/maps/MWMActivity.java
index a3c9731186..f8e55d1230 100644
--- a/android/src/com/mapswithme/maps/MWMActivity.java
+++ b/android/src/com/mapswithme/maps/MWMActivity.java
@@ -52,6 +52,9 @@ public class MWMActivity extends NvEventQueueActivity implements
   private BroadcastReceiver m_externalStorageReceiver = null;
   private AlertDialog m_storageDisconnectedDialog = null;
 
+  private static Context m_context = null;
+  public static Context getCurrentContext() { return m_context; }
+
   private String getAppBundlePath() throws NameNotFoundException
   {
     PackageManager packMgmr = getApplication().getPackageManager();
@@ -237,6 +240,8 @@ public class MWMActivity extends NvEventQueueActivity implements
   {
     super.onCreate(savedInstanceState);
 
+    m_context = this;
+
     final String storagePath = getDataStoragePath();
     // create folder if it doesn't exist
     final File f = new File(storagePath);
diff --git a/android/src/com/mapswithme/maps/downloader/DownloadChunkTask.java b/android/src/com/mapswithme/maps/downloader/DownloadChunkTask.java
index 4750bfa388..892faecb50 100644
--- a/android/src/com/mapswithme/maps/downloader/DownloadChunkTask.java
+++ b/android/src/com/mapswithme/maps/downloader/DownloadChunkTask.java
@@ -7,7 +7,11 @@ import java.net.HttpURLConnection;
 import java.net.MalformedURLException;
 import java.net.URL;
 
+import com.mapswithme.maps.MWMActivity;
+
 import android.os.AsyncTask;
+import android.os.PowerManager;
+import android.os.PowerManager.WakeLock;
 import android.util.Log;
 
 class DownloadChunkTask extends AsyncTask<Void, byte [], Void>
@@ -27,6 +31,8 @@ class DownloadChunkTask extends AsyncTask<Void, byte [], Void>
   private int m_httpErrorCode = NOT_SET;
   private long m_downloadedBytes = 0;
 
+  private WakeLock m_wakeLock = null;
+
   native void onWrite(long httpCallbackID, long beg, byte [] data, long size);
   native void onFinish(long httpCallbackID, long httpCode, long beg, long end);
   
@@ -43,12 +49,17 @@ class DownloadChunkTask extends AsyncTask<Void, byte [], Void>
   @Override
   protected void onPreExecute()
   {
+    PowerManager pm = (PowerManager)MWMActivity.getCurrentContext().getSystemService(
+        android.content.Context.POWER_SERVICE);
+    m_wakeLock = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK | PowerManager.ON_AFTER_RELEASE, TAG);
+    m_wakeLock.acquire();
   }
 
   @Override
   protected void onPostExecute(Void resCode)
   {
     onFinish(m_httpCallbackID, 200, m_beg, m_end);
+    m_wakeLock.release();
   }
   
   @Override
@@ -57,6 +68,7 @@ class DownloadChunkTask extends AsyncTask<Void, byte [], Void>
     // Report error in callback only if we're not forcibly canceled
     if (m_httpErrorCode != NOT_SET)
       onFinish(m_httpCallbackID, m_httpErrorCode, m_beg, m_end);
+    m_wakeLock.release();
   }
 
   @Override