diff --git a/statistical-summaries.qmd b/statistical-summaries.qmd
index 91f69674..f969e927 100644
--- a/statistical-summaries.qmd
+++ b/statistical-summaries.qmd
@@ -403,7 +403,7 @@ See the docs for more details.
 You'll learn more about how geoms and stats interact in @sec-stat.
 
 These summary functions are quite constrained but are often useful for a quick first pass at a problem.
-If you find them restraining, you'll need to do the summaries yourself (see R for Data Science <https://r4ds.had.co.nz> for details)
+If you find them restraining, you'll need to do the summaries yourself (see R for Data Science <https://r4ds.had.co.nz> for details).
 
 ## Surfaces {#sec-surface}