diff --git a/visualize.Rmd b/visualize.Rmd
index d2004ca..5ee7145 100644
--- a/visualize.Rmd
+++ b/visualize.Rmd
@@ -358,7 +358,7 @@ ggplot(data = diamonds) +
   geom_bar(mapping = aes(x = cut, fill = cut))
 ```
 
-If you map the fill aesthetic to a third variable, like `clarity`, you get a stacked bar chart. Each colored rectangle represents a combination of `cut` and `clarity`.
+If you map the fill aesthetic to another variable, like `clarity`, you get a stacked bar chart. Each colored rectangle represents a combination of `cut` and `clarity`.
 
 ```{r}
 ggplot(data = diamonds) +