diff --git a/vignettes/styler.Rmd b/vignettes/styler.Rmd
index 6e5b3ac3d..aa93a8eaa 100644
--- a/vignettes/styler.Rmd
+++ b/vignettes/styler.Rmd
@@ -145,7 +145,7 @@ As of version `1.3.2`, styler has a dry mode which avoids writing output to the
 
 In any case, you can use the (invisible) return value of `style_file()` and friends to learn how files were changed (or would have changed):
 
-```{r}
+```{r, comment = "#>"}
 out <- withr::with_tempfile(
   "code.R",
   {