diff --git a/src/proto/misc2.pro b/src/proto/misc2.pro
index a688147..6b292bb 100644
--- a/src/proto/misc2.pro
+++ b/src/proto/misc2.pro
@@ -80,8 +80,8 @@
 char_u *parse_shape_opt __ARGS((int what));
 int get_shape_idx __ARGS((int mouse));
 void update_mouseshape __ARGS((int shape_idx));
-int decrypt_byte __ARGS((void));
-void update_keys __ARGS((int c));
+void crypt_encode __ARGS((char_u *from, size_t len, char_u *to));
+void crypt_decode __ARGS((char_u *ptr, long len));
 void crypt_init_keys __ARGS((char_u *passwd));
 void free_crypt_key __ARGS((char_u *key));
 char_u *get_crypt_key __ARGS((int store, int twice));