diff --git a/docs/changelog.rst b/docs/changelog.rst
index d056879b7..0da69c8c3 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -25,6 +25,8 @@ To update |kitty|, :doc:`follow the instructions <binary>`.
 - Wayland: Fix kitty being killed on some Wayland compositors if a hidden window
   has a lot of output (:iss:`2329`)
 
+- BSD: Fix controlling terminal not being established (:pull:`2686`)
+
 
 0.17.4 [2020-05-09]
 --------------------
diff --git a/kitty/child.c b/kitty/child.c
index c0bede074..54edc6908 100644
--- a/kitty/child.c
+++ b/kitty/child.c
@@ -12,6 +12,8 @@
 #include <errno.h>
 #include <string.h>
 #include <signal.h>
+#include <sys/ioctl.h>
+#include <termios.h>
 
 static inline char**
 serialize_string_tuple(PyObject *src) {
@@ -93,7 +95,7 @@ spawn(PyObject *self UNUSED, PyObject *args) {
             // Establish the controlling terminal (see man 7 credentials)
             int tfd = open(name, O_RDWR);
             if (tfd == -1) exit_on_err("Failed to open controlling terminal");
-#ifdef TIOCSTTY
+#ifdef TIOCSCTTY
             // On BSD open() does not establish the controlling terminal
             if (ioctl(tfd, TIOCSCTTY, 0) == -1) exit_on_err("Failed to set controlling terminal with TIOCSCTTY");
 #endif