diff --git a/lib/rb/ext/constants.h b/lib/rb/ext/constants.h
index 2b18081..57df544 100644
--- a/lib/rb/ext/constants.h
+++ b/lib/rb/ext/constants.h
@@ -73,7 +73,7 @@
 extern ID write_field_stop_method_id;
 extern ID skip_method_id;
 extern ID write_method_id;
-extern ID read_method_id;
+extern ID read_all_method_id;
 extern ID native_qmark_method_id;
 
 extern ID fields_const_id;