diff --git a/R/geom-function.R b/R/geom-function.R
index 98fba891fc..30b58d8426 100644
--- a/R/geom-function.R
+++ b/R/geom-function.R
@@ -32,6 +32,8 @@
 #'
 #' base + stat_function(fun = dnorm, geom = "point", n = 20)
 #'
+#' base + stat_function(fun = dnorm, geom = "polygon", color = "blue", fill = "blue", alpha = 0.5)
+#'
 #' base + geom_function(fun = dnorm, n = 20)
 #'
 #' # Two functions on the same plot
diff --git a/man/geom_function.Rd b/man/geom_function.Rd
index bcc0d61538..053808f93f 100644
--- a/man/geom_function.Rd
+++ b/man/geom_function.Rd
@@ -130,6 +130,8 @@ base + stat_function(fun = dnorm, geom = "point")
 
 base + stat_function(fun = dnorm, geom = "point", n = 20)
 
+base + stat_function(fun = dnorm, geom = "polygon", color = "blue", fill = "blue", alpha = 0.5)
+
 base + geom_function(fun = dnorm, n = 20)
 
 # Two functions on the same plot