diff --git a/slides/slides.Rmd b/slides/slides.Rmd
index 873e991..613d2dc 100644
--- a/slides/slides.Rmd
+++ b/slides/slides.Rmd
@@ -134,7 +134,7 @@ tinytex::install_tinytex()
   - Use the `New R Markdown` file option in RStudio, or create a plaintext file.
 2. Run the R code
 ```{r, eval = FALSE}
-rmarkdown::render({document.Rmd})
+rmarkdown::render("document.Rmd")
 ```
 .center[**OR**]
   Use the `Knit` button in RStudio.