diff --git a/parse.y b/parse.y
index d86f8a3734..c54504eeac 100644
--- a/parse.y
+++ b/parse.y
@@ -10036,8 +10036,9 @@ rb_parser_while_loop(VALUE vparser, NODE *node, int chop, int split)
 }
 
 void
-Init_parser(void)
+rb_init_parse(void)
 {
+    /* just to suppress unused-function warnings */
     (void)nodetype;
     (void)nodeline;
 #if PARSER_DEBUG