Index: src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c
===================================================================
--- src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c	(revision 37995)
+++ src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c	(working copy)
@@ -284,10 +284,10 @@
  * @param   pDev    The device node.
  * @param   fOpen   The open flags.
  * @param   pTd     The thread.
- * @param   pFd     The file descriptor. FreeBSD 7.0 and later.
- * @param   iFd     The file descriptor index(?). Pre FreeBSD 7.0.
+ * @param   pFd     The file descriptor. Introduced in FreeBSD 7.0-CURRENT.
+ * @param   iFd     The file descriptor index. Pre FreeBSD 7.0.
  */
-#if __FreeBSD__ >= 7
+#if __FreeBSD_version >= 700044
 static int VBoxDrvFreeBSDOpen(struct cdev *pDev, int fOpen, struct thread *pTd, struct file *pFd)
 #else
 static int VBoxDrvFreeBSDOpen(struct cdev *pDev, int fOpen, struct thread *pTd, int iFd)
