diff --git a/content/blog/testthat-3-1/index.Rmd b/content/blog/testthat-3-1/index.Rmd
index 02c82d6b7..f777d2f09 100644
--- a/content/blog/testthat-3-1/index.Rmd
+++ b/content/blog/testthat-3-1/index.Rmd
@@ -144,7 +144,7 @@ informative_error <- function() {
   )
 }
 
-err <- expect_error(my_function(), class = "package_error_class")
+err <- expect_error(informative_error(), class = "package_error_class")
 expect_equal(err$name, "patrice")
 expect_equal(err$number, 17)
 ```