diff --git a/src/Css.elm b/src/Css.elm
index c3812b72..9d4c351a 100644
--- a/src/Css.elm
+++ b/src/Css.elm
@@ -302,7 +302,7 @@ values.
 
 Because only one `css` attribute per element has any effect, you cannot reuse
 styles after compiling them to attributes. Trying to reuse styles by using
-multiple attributes will not not work:
+multiple attributes will not work:
 
     greenBorder : Attribute msg
     greenBorder =