diff --git a/src/proto/terminal.pro b/src/proto/terminal.pro
index 421653a..e89b0a2 100644
--- a/src/proto/terminal.pro
+++ b/src/proto/terminal.pro
@@ -2,4 +2,5 @@
 void ex_terminal(exarg_T *eap);
 void write_to_term(buf_T *buffer, char_u *msg, channel_T *channel);
 void term_update_window(win_T *wp);
+void terminal_loop(void);
 /* vim: set ft=c : */