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-rw-r--r--hurd/hurdchdir.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hurd/hurdchdir.c b/hurd/hurdchdir.c
index 0c10a37d1b..5115e4d460 100644
--- a/hurd/hurdchdir.c
+++ b/hurd/hurdchdir.c
@@ -40,7 +40,7 @@ _hurd_change_directory_port_from_name (struct hurd_port *portcell,
     lookup = name;
   else
     {
-      char *n = alloca (len + 2);
+      char *n = alloca (len + 3);
       memcpy (n, name, len);
       n[len] = '/';
       n[len + 1] = '.';