diff --git a/README.asciidoc b/README.asciidoc
index a48ca7fa3..0e13a1e9b 100644
--- a/README.asciidoc
+++ b/README.asciidoc
@@ -965,7 +965,7 @@ Some options are built in Kakoune, and can be used to control its behaviour:
    - `option=<opt-name>` where <opt-name> is a _completions_ option.
  * `static_words` _str-list_: list of words that are always added to completion
      candidates when completing words in insert mode.
- * `completions_extra_word_chars` _str_: a string containing all additional character
+ * `extra_word_chars` _codepoint-list_: list of all additional codepoints
      that should be considered as word character for the purpose of insert mode
      completion.
  * `autoreload` _enum(yes|no|ask)_: auto reload the buffers when an external
diff --git a/doc/manpages/options.asciidoc b/doc/manpages/options.asciidoc
index aad4b5083..f6adec0c8 100644
--- a/doc/manpages/options.asciidoc
+++ b/doc/manpages/options.asciidoc
@@ -18,7 +18,7 @@ Types
 *regex*::
 	as a string but the set commands will complain if the entered text
 	is not a valid regex
-*int-list*, *str-list*::
+*int-list*, *str-list*, *codepoint-list*::
 	a list, elements are separated by a colon (:) if an element needs
 	to contain a colon, it can be escaped with a backslash
 *range-specs*::
@@ -125,8 +125,8 @@ Builtin options
 	list of words that are always added to completion candidates
 	when completing words in insert mode
 
-*completions_extra_word_chars* 'str'::
-	a string containing all additional character that should be considered
+*extra_word_chars* 'codepoint-list'::
+	a list of all additional codepoints that should be considered
 	as word character for the purpose of insert mode completion.
 
 *autoreload* 'enum(yes|no|ask)'::