diff --git a/src/proto/ex_getln.pro b/src/proto/ex_getln.pro
index 26eb00d..9c2b5f6 100644
--- a/src/proto/ex_getln.pro
+++ b/src/proto/ex_getln.pro
@@ -48,8 +48,8 @@
 void remove_key_from_history __ARGS((void));
 int get_list_range __ARGS((char_u **str, int *num1, int *num2));
 void ex_history __ARGS((exarg_T *eap));
-void prepare_viminfo_history __ARGS((int asklen));
-int read_viminfo_history __ARGS((vir_T *virp));
+void prepare_viminfo_history __ARGS((int asklen, int writing));
+int read_viminfo_history __ARGS((vir_T *virp, int writing));
 void finish_viminfo_history __ARGS((void));
 void write_viminfo_history __ARGS((FILE *fp));
 void cmd_pchar __ARGS((int c, int offset));