diff --git a/README.md b/README.md
index 3d96852..d8acf91 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,7 @@ Supports
 - Less with or without [vim-less][9] (see Configuration).
 - Sass/Scss (see Configuration).
 - [vim-emmet][10] HTML/CSS/JavaScript filetype detection (Aug 9, 2019).
+- A builtin foldexpr fold method.
 - `.wpy` files from [WePY][6].
 
 ## Configuration
@@ -53,7 +54,8 @@ Ex:
 | `g:vim_vue_plugin_use_less`           | Enable less syntax for `<style lang="less">`.                                                          | 0 |
 | `g:vim_vue_plugin_use_sass`           | Enable sass/scss syntax for `<style lang="sass">`(or scss).                                            | 0 |
 | `g:vim_vue_plugin_has_init_indent`    | Initially indent one tab inside `style/script` tags.                                                   | 0 for `.vue`. 1 for `.wpy` |
-| `g:vim_vue_plugin_highlight_vue_attr` | Highlight vue attribute value as expression instead of string.                                              | 0 |
+| `g:vim_vue_plugin_highlight_vue_attr` | Highlight vue attribute value as expression instead of string.                                         | 0 |
+| `g:vim_vue_plugin_use_foldexpr`       | Enable builtin foldexpr fold method.                                                                   | 1 |
 | `g:vim_vue_plugin_debug`              | Echo debug messages in `messages` list. Useful to debug if unexpected indents occur.                   | 0 |
 
 \*: Vim may be slow if the feature is enabled. Find a balance between syntax highlight and speed. By the way, custom syntax could be added in `~/.vim/syntax` or `$VIM/vimfiles/syntax`.