diff --git a/lib/hx509/sel.h b/lib/hx509/sel.h
index cd65ca85a..ce6c3636b 100644
--- a/lib/hx509/sel.h
+++ b/lib/hx509/sel.h
@@ -76,5 +76,7 @@ extern struct hx_expr_input _hx509_expr_input;
 #define yynerrs _hx509_sel_yynerrs
 #define yywrap  _hx509_sel_yywrap
 
-int _hx509_sel_yyparse(void);
+int  _hx509_sel_yyparse(void);
+int  _hx509_sel_yylex(void);
+void _hx509_sel_yyerror(char *);