diff --git a/include/android/input.h b/include/android/input.h
index f2befa9e..c8ac938 100644
--- a/include/android/input.h
+++ b/include/android/input.h
@@ -428,6 +428,7 @@
 enum {
     AINPUT_SOURCE_CLASS_MASK = 0x000000ff,
 
+    AINPUT_SOURCE_CLASS_NONE = 0x00000000,
     AINPUT_SOURCE_CLASS_BUTTON = 0x00000001,
     AINPUT_SOURCE_CLASS_POINTER = 0x00000002,
     AINPUT_SOURCE_CLASS_NAVIGATION = 0x00000004,
@@ -446,6 +447,7 @@
     AINPUT_SOURCE_STYLUS = 0x00004000 | AINPUT_SOURCE_CLASS_POINTER,
     AINPUT_SOURCE_TRACKBALL = 0x00010000 | AINPUT_SOURCE_CLASS_NAVIGATION,
     AINPUT_SOURCE_TOUCHPAD = 0x00100000 | AINPUT_SOURCE_CLASS_POSITION,
+    AINPUT_SOURCE_TOUCH_NAVIGATION = 0x00200000 | AINPUT_SOURCE_CLASS_NONE,
     AINPUT_SOURCE_JOYSTICK = 0x01000000 | AINPUT_SOURCE_CLASS_JOYSTICK,
 
     AINPUT_SOURCE_ANY = 0xffffff00,