1 files changed, 1 insertions, 1 deletions

diff --git a/src/process.c b/src/process.c
index 6b8b483cdf7..50d1968200d 100644
--- a/src/process.c
+++ b/src/process.c
@@ -2114,7 +2114,7 @@ dissociate_controlling_tty (void)
          child that has not execed.
          I wonder: would just ioctl (fd, TIOCNOTTY, 0) work here, for
          some fd that the caller already has?  */
-      int ttyfd = emacs_open (DEV_TTY, O_RDWR, 0);
+      int ttyfd = emacs_open (dev_tty, O_RDWR, 0);
       if (0 <= ttyfd)
         {
           ioctl (ttyfd, TIOCNOTTY, 0);