diff --git a/transform.Rmd b/transform.Rmd
index e12fb89..7d98099 100644
--- a/transform.Rmd
+++ b/transform.Rmd
@@ -392,8 +392,7 @@ There are many functions for creating new variables that you can use with `mutat
     conjunction with `group_by()`, which you'll learn about shortly.
     
     ```{r}
-    x <- 1:10
-    x
+    (x <- 1:10)
     lag(x)
     lead(x)
     ```