diff --git a/include/dix.h b/include/dix.h
index b1edb6c46..9fd2ed8f8 100644
--- a/include/dix.h
+++ b/include/dix.h
@@ -587,8 +587,8 @@ typedef struct {
 
 extern int XItoCoreType(int xi_type);
 extern Bool DevHasCursor(DeviceIntPtr pDev);
-extern Bool IsPointerDevice( DeviceIntPtr dev);
-extern Bool IsKeyboardDevice(DeviceIntPtr dev);
+extern Bool _X_EXPORT IsPointerDevice( DeviceIntPtr dev);
+extern Bool _X_EXPORT IsKeyboardDevice(DeviceIntPtr dev);
 extern Bool IsPointerEvent(InternalEvent *event);
 extern Bool IsMaster(DeviceIntPtr dev);