diff --git a/vignettes/simulated_example.Rmd b/vignettes/simulated_example.Rmd
index 268f4f6..91d61eb 100644
--- a/vignettes/simulated_example.Rmd
+++ b/vignettes/simulated_example.Rmd
@@ -15,7 +15,7 @@ knitr::opts_chunk$set(
 ```
 
 ```{r setup, include = FALSE}
-# library(growthbreaks)
+library(growthbreaks)
 library(MASS)
 library(dplyr)
 library(ggplot2)