diff --git a/src/proto/gui_amiga.pro b/src/proto/gui_amiga.pro
index ec70bc1..2f8d2ac 100644
--- a/src/proto/gui_amiga.pro
+++ b/src/proto/gui_amiga.pro
@@ -20,9 +20,11 @@
 void gui_mch_set_scrollbar_pos __ARGS((scrollbar_T *sb, int x, int y, int w, int h));
 void gui_mch_create_scrollbar __ARGS((scrollbar_T *sb, int orient));
 void gui_mch_destroy_scrollbar __ARGS((scrollbar_T *sb));
+char_u *gui_mch_getfontname __ARGS((GuiFont font));
 int gui_mch_init_font __ARGS((char_u *font_name, int fontset));
 int gui_mch_adjust_charsize __ARGS((void));
 GuiFont gui_mch_get_font __ARGS((char_u *name, int giveErrorIfMissing));
+char_u *gui_mch_get_fontname __ARGS((GuiFont font, char_u *name));
 void gui_mch_set_font __ARGS((GuiFont font));
 void gui_mch_free_font __ARGS((GuiFont font));
 guicolor_T gui_mch_get_color __ARGS((char_u *name));
diff --git a/src/proto/gui_x11.pro b/src/proto/gui_x11.pro
index 6524c26..035c27f 100644
--- a/src/proto/gui_x11.pro
+++ b/src/proto/gui_x11.pro
@@ -15,6 +15,7 @@
 void gui_mch_get_screen_dimensions __ARGS((int *screen_w, int *screen_h));
 int gui_mch_init_font __ARGS((char_u *font_name, int do_fontset));
 GuiFont gui_mch_get_font __ARGS((char_u *name, int giveErrorIfMissing));
+char_u *gui_mch_get_fontname __ARGS((GuiFont font, char_u *name));
 int gui_mch_adjust_charsize __ARGS((void));
 void gui_mch_set_font __ARGS((GuiFont font));
 void gui_mch_set_fontset __ARGS((GuiFontset fontset));