diff --git a/src/proto/channel.pro b/src/proto/channel.pro
index f9a7014..1b9282c 100644
--- a/src/proto/channel.pro
+++ b/src/proto/channel.pro
@@ -34,9 +34,9 @@
 char_u *channel_read_block(channel_T *channel, ch_part_T part, int timeout);
 void common_channel_read(typval_T *argvars, typval_T *rettv, int raw);
 channel_T *channel_fd2channel(sock_T fd, ch_part_T *partp);
-void channel_handle_events(void);
+void channel_handle_events(int only_keep_open);
 void channel_set_nonblock(channel_T *channel, ch_part_T part);
-int channel_send(channel_T *channel, ch_part_T part, char_u *buf, int len, char *fun);
+int channel_send(channel_T *channel, ch_part_T part, char_u *buf_arg, int len_arg, char *fun);
 void ch_expr_common(typval_T *argvars, typval_T *rettv, int eval);
 void ch_raw_common(typval_T *argvars, typval_T *rettv, int eval);
 int channel_poll_setup(int nfd_in, void *fds_in);
diff --git a/src/proto/os_unix.pro b/src/proto/os_unix.pro
index 80539d3..bdbe17f 100644
--- a/src/proto/os_unix.pro
+++ b/src/proto/os_unix.pro
@@ -66,6 +66,7 @@
 job_T *mch_detect_ended_job(job_T *job_list);
 int mch_signal_job(job_T *job, char_u *how);
 void mch_clear_job(job_T *job);
+int mch_create_pty_channel(job_T *job, jobopt_T *options);
 void mch_breakcheck(int force);
 int mch_expandpath(garray_T *gap, char_u *path, int flags);
 int mch_expand_wildcards(int num_pat, char_u **pat, int *num_file, char_u ***file, int flags);