diff --git a/README.md b/README.md
index a4faa39c..bd4e052c 100644
--- a/README.md
+++ b/README.md
@@ -688,7 +688,7 @@ If you're using the `X-SourceMap` header instead, you can just omit `sourceMap.u
   [compress option](#compress-options).
 
 - `eval` (default `false`). Pass `true` to mangle names visible in scopes
-  where eval or with are used.
+  where `eval` or `with` are used.
 
 - `safari10` (default `false`). Pass `true` to work around the 
   Safari 10 loop scope [bug](https://bugs.webkit.org/show_bug.cgi?id=171041)