1 files changed, 1 insertions, 2 deletions

diff --git a/src/sysdep.c b/src/sysdep.c
index 1dbe8938e46..183ee005227 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -2307,8 +2307,7 @@ serial_configure (struct Lisp_Process *p,
     error ("tcsetattr() failed: %s", emacs_strerror (errno));
 
   childp2 = Fplist_put (childp2, QCsummary, build_string (summary));
-  PSET (p, childp, childp2);
-
+  pset_childp (p, childp2);
 }
 #endif /* not DOS_NT  */