1 files changed, 2 insertions, 1 deletions
diff --git a/node.c b/node.c
index 60e01caa31..392ab35944 100644
--- a/node.c
+++ b/node.c
@@ -301,8 +301,9 @@ rb_ast_t *
 rb_ast_new(const rb_parser_config_t *config)
 {
     node_buffer_t *nb = rb_node_buffer_new(config);
-    rb_ast_t *ast = config->ast_new(nb);
+    rb_ast_t *ast = (rb_ast_t *)config->calloc(1, sizeof(rb_ast_t));
     ast->config = config;
+    ast->node_buffer = nb;
     return ast;
 }
 #else