diff --git a/KEYWORDS.md b/KEYWORDS.md
index f9005f3..3ea4e71 100644
--- a/KEYWORDS.md
+++ b/KEYWORDS.md
@@ -664,7 +664,7 @@ _valid_: `"foo"`
 _invalid_: any other value
 
 
-The same can be achieved with `enum` keyword using the array with one item. But `constant` keyword is more that just a syntax sugar for `enum`. In combination with the [$data reference](https://github.com/epoberezkin/ajv#data-reference) it allows to define equality relations between different parts of the data. This cannot be achieved with `enum` keyword even with `$data` reference because `$data` cannot be used in place of one item - it can only be used in place of the whole array in `enum` keyword.
+The same can be achieved with `enum` keyword using the array with one item. But `constant` keyword is more than just a syntax sugar for `enum`. In combination with the [$data reference](https://github.com/epoberezkin/ajv#data-reference) it allows to define equality relations between different parts of the data. This cannot be achieved with `enum` keyword even with `$data` reference because `$data` cannot be used in place of one item - it can only be used in place of the whole array in `enum` keyword.
 
 
 __Example__