diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c
index 61e13c1..6cdf5b5 100644
--- a/sys/kern/kern_descrip.c
+++ b/sys/kern/kern_descrip.c
@@ -1461,7 +1461,7 @@ fdalloc(struct thread *td, int minfd, int *result)
 {
 	struct proc *p = td->td_proc;
 	struct filedesc *fdp = p->p_fd;
-	int fd = -1, maxfd;
+	int fd = -1, maxfd, allocfd;
 #ifdef RACCT
 	int error;
 #endif
@@ -1484,15 +1484,16 @@ fdalloc(struct thread *td, int minfd, int *result)
 	if (fd >= maxfd)
 		return (EMFILE);
 	if (fd >= fdp->fd_nfiles) {
+		allocfd = 2 * max(fdp->fd_nfiles, fd);
 #ifdef RACCT
 		PROC_LOCK(p);
 		error = racct_set(p, RACCT_NOFILE,
-		    min(fdp->fd_nfiles * 2, maxfd));
+		    min(allocfd, maxfd));
 		PROC_UNLOCK(p);
 		if (error != 0)
 			return (EMFILE);
 #endif
-		fdgrowtable(fdp, min(fdp->fd_nfiles * 2, maxfd));
+		fdgrowtable(fdp, min(allocfd, maxfd));
 		/* Retry... */
 		fd = fd_first_free(fdp, minfd, fdp->fd_nfiles);
 		if (fd >= maxfd)