diff --git a/R/stat-summary.r b/R/stat-summary.r
index bdc7fea548..e315e3fe1b 100644
--- a/R/stat-summary.r
+++ b/R/stat-summary.r
@@ -53,7 +53,7 @@
 #' d + stat_summary(fun.data = "mean_cl_boot", colour = "red", size = 2)
 #'
 #' # Orientation follows the discrete axis
-#' ggplot(mtcars, aes(mpg, cyl)) +
+#' ggplot(mtcars, aes(mpg, factor(cyl))) +
 #'   geom_point() +
 #'   stat_summary(fun.data = "mean_cl_boot", colour = "red", size = 2)
 #'
diff --git a/man/stat_summary.Rd b/man/stat_summary.Rd
index 516b8a570e..204c0358c1 100644
--- a/man/stat_summary.Rd
+++ b/man/stat_summary.Rd
@@ -186,7 +186,7 @@ d <- ggplot(mtcars, aes(cyl, mpg)) + geom_point()
 d + stat_summary(fun.data = "mean_cl_boot", colour = "red", size = 2)
 
 # Orientation follows the discrete axis
-ggplot(mtcars, aes(mpg, cyl)) +
+ggplot(mtcars, aes(mpg, factor(cyl))) +
   geom_point() +
   stat_summary(fun.data = "mean_cl_boot", colour = "red", size = 2)