diff --git a/gio/gfile.c b/gio/gfile.c
index 0e6d4c819..16ff09fe3 100644
--- a/gio/gfile.c
+++ b/gio/gfile.c
@@ -3188,7 +3188,7 @@ splice_stream_with_progress (GInputStream           *in,
   fd_in = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (in));
   fd_out = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (out));
 
-  if (!g_unix_open_pipe (buffer, FD_CLOEXEC, error))
+  if (!g_unix_open_pipe (buffer, O_CLOEXEC, error))
     return FALSE;
 
   /* Try a 1MiB buffer for improved throughput. If that fails, use the default
diff --git a/gio/gtestdbus.c b/gio/gtestdbus.c
index 9ff74e653..d75b4395a 100644
--- a/gio/gtestdbus.c
+++ b/gio/gtestdbus.c
@@ -604,7 +604,7 @@ make_pipe (gint     pipe_fds[2],
            GError **error)
 {
 #if defined(G_OS_UNIX)
-  return g_unix_open_pipe (pipe_fds, FD_CLOEXEC, error);
+  return g_unix_open_pipe (pipe_fds, O_CLOEXEC, error);
 #elif defined(G_OS_WIN32)
   if (_pipe (pipe_fds, 4096, _O_BINARY) < 0)
     {
diff --git a/gio/tests/gdbus-close-pending.c b/gio/tests/gdbus-close-pending.c
index 7d4d6c9ab..61f1faa79 100644
--- a/gio/tests/gdbus-close-pending.c
+++ b/gio/tests/gdbus-close-pending.c
@@ -306,9 +306,9 @@ test_once (Fixture       *f,
   GDBusMessage *message;
   gboolean pipe_res;
 
-  pipe_res = g_unix_open_pipe (f->server_to_client, FD_CLOEXEC, &f->error);
+  pipe_res = g_unix_open_pipe (f->server_to_client, O_CLOEXEC, &f->error);
   g_assert (pipe_res);
-  pipe_res = g_unix_open_pipe (f->client_to_server, FD_CLOEXEC, &f->error);
+  pipe_res = g_unix_open_pipe (f->client_to_server, O_CLOEXEC, &f->error);
   g_assert (pipe_res);
 
   f->server_iostream = my_io_stream_new_for_fds (f->client_to_server[0],
diff --git a/gio/tests/gsubprocess.c b/gio/tests/gsubprocess.c
index 695012c7d..45fdf93b2 100644
--- a/gio/tests/gsubprocess.c
+++ b/gio/tests/gsubprocess.c
@@ -1750,9 +1750,9 @@ do_test_pass_fd (GSubprocessFlags     flags,
   char *basic_fd_str;
   char *needdup_fd_str;
 
-  g_unix_open_pipe (basic_pipefds, FD_CLOEXEC, error);
+  g_unix_open_pipe (basic_pipefds, O_CLOEXEC, error);
   g_assert_no_error (local_error);
-  g_unix_open_pipe (needdup_pipefds, FD_CLOEXEC, error);
+  g_unix_open_pipe (needdup_pipefds, O_CLOEXEC, error);
   g_assert_no_error (local_error);
 
   basic_fd_str = g_strdup_printf ("%d", basic_pipefds[1]);
@@ -1854,10 +1854,10 @@ do_test_fd_conflation (GSubprocessFlags     flags,
       return;
     }
 
-  g_unix_open_pipe (unused_pipefds, FD_CLOEXEC, &error);
+  g_unix_open_pipe (unused_pipefds, O_CLOEXEC, &error);
   g_assert_no_error (error);
 
-  g_unix_open_pipe (pipefds, FD_CLOEXEC, &error);
+  g_unix_open_pipe (pipefds, O_CLOEXEC, &error);
   g_assert_no_error (error);
 
   /* The fds should be sequential since we are in a new process. */
diff --git a/gio/tests/unix-fd.c b/gio/tests/unix-fd.c
index ecf1aea37..62c17df14 100644
--- a/gio/tests/unix-fd.c
+++ b/gio/tests/unix-fd.c
@@ -63,7 +63,7 @@ test_fd_list (void)
   s = _pipe (sv, 4096, _O_NOINHERIT | _O_BINARY);
   g_assert_cmpint (s, ==, 0);
 #else
-  g_unix_open_pipe (sv, FD_CLOEXEC, &err);
+  g_unix_open_pipe (sv, O_CLOEXEC, &err);
   g_assert_no_error (err);
 #endif
   list = g_unix_fd_list_new_from_array (sv, -1);
diff --git a/glib/gtester.c b/glib/gtester.c
index af1f29164..24f84f6c9 100644
--- a/glib/gtester.c
+++ b/glib/gtester.c
@@ -305,7 +305,7 @@ launch_test_binary (const char *binary,
   gboolean loop_pending;
   gint i = 0;
 
-  if (!g_unix_open_pipe (report_pipe, FD_CLOEXEC, &error))
+  if (!g_unix_open_pipe (report_pipe, O_CLOEXEC, &error))
     {
       if (subtest_mode_fatal)
         g_error ("Failed to open pipe for test binary: %s: %s", binary, error->message);
diff --git a/glib/gwakeup.c b/glib/gwakeup.c
index a3283a3ff..1674304f0 100644
--- a/glib/gwakeup.c
+++ b/glib/gwakeup.c
@@ -160,7 +160,7 @@ g_wakeup_new (void)
   /* for any failure, try a pipe instead */
 #endif
 
-  if (!g_unix_open_pipe (wakeup->fds, FD_CLOEXEC | O_NONBLOCK, &error))
+  if (!g_unix_open_pipe (wakeup->fds, O_CLOEXEC | O_NONBLOCK, &error))
     g_error ("Creating pipes for GWakeup: %s", error->message);
 
   if (!g_unix_set_fd_nonblocking (wakeup->fds[0], TRUE, &error) ||
diff --git a/glib/tests/spawn-singlethread.c b/glib/tests/spawn-singlethread.c
index 8d9ddef5f..33b44d650 100644
--- a/glib/tests/spawn-singlethread.c
+++ b/glib/tests/spawn-singlethread.c
@@ -237,7 +237,7 @@ test_spawn_async_with_fds (void)
               break;
             case PIPE:
 #ifdef G_OS_UNIX
-              g_unix_open_pipe (test_pipe[j], FD_CLOEXEC, &error);
+              g_unix_open_pipe (test_pipe[j], O_CLOEXEC, &error);
               g_assert_no_error (error);
 #else
               g_assert_cmpint (_pipe (test_pipe[j], 4096, _O_BINARY), >=, 0);
diff --git a/glib/tests/unix.c b/glib/tests/unix.c
index 12f4a609f..ab6efaa76 100644
--- a/glib/tests/unix.c
+++ b/glib/tests/unix.c
@@ -41,7 +41,7 @@ test_pipe (void)
   gssize bytes_read;
   gboolean res;
 
-  res = g_unix_open_pipe (pipefd, FD_CLOEXEC, &error);
+  res = g_unix_open_pipe (pipefd, O_CLOEXEC, &error);
   g_assert (res);
   g_assert_no_error (error);
 
@@ -103,7 +103,7 @@ test_pipe_stdio_overwrite (void)
   g_close (STDIN_FILENO, &error);
   g_assert_no_error (error);
 
-  res = g_unix_open_pipe (pipefd, FD_CLOEXEC, &error);
+  res = g_unix_open_pipe (pipefd, O_CLOEXEC, &error);
   g_assert_no_error (error);
   g_assert_true (res);
 
@@ -143,7 +143,7 @@ test_nonblocking (void)
   gboolean res;
   int flags;
 
-  res = g_unix_open_pipe (pipefd, FD_CLOEXEC, &error);
+  res = g_unix_open_pipe (pipefd, O_CLOEXEC, &error);
   g_assert (res);
   g_assert_no_error (error);