diff --git a/R/simulate_simpson.R b/R/simulate_simpson.R
index 112ab7dcd..8b8cd55fb 100644
--- a/R/simulate_simpson.R
+++ b/R/simulate_simpson.R
@@ -12,7 +12,7 @@
 #'
 #' @return A dataset.
 #'
-#' @examples
+#' @examplesIf requireNamespace("MASS", quietly = TRUE)
 #' data <- simulate_simpson(n = 10, groups = 5, r = 0.5)
 #'
 #' if (require("ggplot2")) {
diff --git a/man/simulate_simpson.Rd b/man/simulate_simpson.Rd
index 5c5590e95..80cc62c2e 100644
--- a/man/simulate_simpson.Rd
+++ b/man/simulate_simpson.Rd
@@ -33,6 +33,7 @@ and statistics, in which a trend appears in several different groups of data
 but disappears or reverses when these groups are combined.
 }
 \examples{
+\dontshow{if (requireNamespace("MASS", quietly = TRUE)) (if (getRversion() >= "3.4") withAutoprint else force)(\{ # examplesIf}
 data <- simulate_simpson(n = 10, groups = 5, r = 0.5)
 
 if (require("ggplot2")) {
@@ -41,4 +42,5 @@ if (require("ggplot2")) {
     geom_smooth(aes(color = Group), method = "lm") +
     geom_smooth(method = "lm")
 }
+\dontshow{\}) # examplesIf}
 }