diff --git a/ASCII/README.md b/ASCII/README.md
index 37a00e9..0bc4cb9 100644
--- a/ASCII/README.md
+++ b/ASCII/README.md
@@ -103,7 +103,8 @@ img --bg <0-99> <url> (set a background color)
 img --fg <0-99> <url> (set a foreground color)
 img --fast <url> (use Euclidean color difference.)
 img --slow <url> (use cie2000 color difference. best quality, default)
-img --dither <url> (dither source image to 256 colors. trades off quality for speed)
+img --quantize <url> (quantize source image to 256 colors. trades off quality for speed)
+img --no-quantize <url> (don't quantize source to 256 colors)
 ```
 Here are some images using 99 color default output:
 ![Image of Img Command Output](https://i.imgur.com/33tCGXC.png)<br>