diff --git a/doc/manpages/options.asciidoc b/doc/manpages/options.asciidoc
index bd2f15e4..6a853d68 100644
--- a/doc/manpages/options.asciidoc
+++ b/doc/manpages/options.asciidoc
@@ -113,7 +113,8 @@ Builtin options
 		provides completion based on local filesystem
 
 	*option=<opt-name>*:::
-		where *opt-name* is a 'completions' option.
+		where *opt-name* is an option of type 'completions' whose
+		contents will be used
 
 *static_words* 'str-list'::
 	list of words that are always added to completion candidates