diff --git a/lists.Rmd b/lists.Rmd
index 8350760..aedf831 100644
--- a/lists.Rmd
+++ b/lists.Rmd
@@ -49,7 +49,7 @@ x <- list(1, 2, 3)
 str(x)
 
 x_named <- list(a = 1, b = 2, c = 3)
-str(x)
+str(x_named)
 ```
 
 Unlike atomic vectors, `lists()` can contain a mix of objects: