diff --git a/strings.Rmd b/strings.Rmd
index 77dc712..75ba4c5 100644
--- a/strings.Rmd
+++ b/strings.Rmd
@@ -818,7 +818,7 @@ sentences %>%
 
 1.  Replace all forward slashes in a string with backslashes.
 
-2.  Implement a simple version of `str_to_lower()` using `replace_all()`.
+2.  Implement a simple version of `str_to_lower()` using `str_replace_all()`.
 
 3.  Switch the first and last letters in `words`.
     Which of those strings are still words?