diff --git a/reactos/drivers/usb/nt4compat/usbdriver/usbdriver.h b/reactos/drivers/usb/nt4compat/usbdriver/usbdriver.h
index 29c6d6b144b..4d3f15172cc 100644
--- a/reactos/drivers/usb/nt4compat/usbdriver/usbdriver.h
+++ b/reactos/drivers/usb/nt4compat/usbdriver/usbdriver.h
@@ -17,6 +17,20 @@
 
 #include <ntddk.h>
 #include <stdio.h>
+
+// NT4 DDK-compatibility
+#ifndef RTL_CONSTANT_STRING
+#   define RTL_CONSTANT_STRING(s) { sizeof( s ) - sizeof( (s)[0] ), sizeof( s ), s }
+#endif
+
+#ifndef OBJ_KERNEL_HANDLE
+#   define OBJ_KERNEL_HANDLE       0x00000200L
+#endif
+
+#ifndef FILE_DEVICE_SECURE_OPEN
+#   define FILE_DEVICE_SECURE_OPEN         0x00000100
+#endif
+
 #include "debug.h"
 #include "usb.h"
 #include "hcd.h"