diff --git a/src/proto/spell.pro b/src/proto/spell.pro
new file mode 100644
index 0000000..c802b16
--- /dev/null
+++ b/src/proto/spell.pro
@@ -0,0 +1,5 @@
+/* spell.c */
+int spell_check __ARGS((win_T *wp, char_u *ptr, int *attrp));
+char_u *did_set_spelllang __ARGS((buf_T *buf));
+void spell_reload __ARGS((void));
+/* vim: set ft=c : */