diff --git a/modules/input/evdev/InputDevice.h b/modules/input/evdev/InputDevice.h
index a379d6c..6892778 100644
--- a/modules/input/evdev/InputDevice.h
+++ b/modules/input/evdev/InputDevice.h
@@ -22,12 +22,20 @@
 
 #include <utils/Timers.h>
 
-#include "InputHost.h"
-#include "InputHub.h"
 #include "InputMapper.h"
 
+struct input_device_handle;
+struct input_device_identifier;
+
 namespace android {
 
+class InputDeviceDefinition;
+class InputDeviceNode;
+class InputHostInterface;
+struct InputEvent;
+using InputDeviceHandle = struct input_device_handle;
+using InputDeviceIdentifier = struct input_device_identifier;
+
 /**
  * InputDeviceInterface represents an input device in the HAL. It processes
  * input events before passing them to the input host.