diff --git a/src/proto/os_unix.pro b/src/proto/os_unix.pro
index 4b1257b..5fee8a5 100644
--- a/src/proto/os_unix.pro
+++ b/src/proto/os_unix.pro
@@ -56,6 +56,7 @@
 void mch_bevalterm_changed(void);
 void check_mouse_termcode(void);
 int mch_get_shellsize(void);
+void mch_calc_cell_size(struct cellsize *cs_out);
 int mch_report_winsize(int fd, int rows, int cols);
 void mch_set_shellsize(void);
 void mch_new_shellsize(void);
@@ -75,8 +76,8 @@
 int mch_rename(const char *src, const char *dest);
 int gpm_available(void);
 int gpm_enabled(void);
-int mch_libcall(char_u *libname, char_u *funcname, char_u *argstring, int argint, char_u **string_result, int *number_result);
 int mch_get_random(char_u *buf, int len);
+int mch_libcall(char_u *libname, char_u *funcname, char_u *argstring, int argint, char_u **string_result, int *number_result);
 void setup_term_clip(void);
 void start_xterm_trace(int button);
 void stop_xterm_trace(void);
@@ -91,5 +92,4 @@
 void stop_timeout(void);
 volatile sig_atomic_t *start_timeout(long msec);
 void delete_timer(void);
-void mch_calc_cell_size(struct cellsize *cs_out);
 /* vim: set ft=c : */