diff --git a/etc/telegraf.conf b/etc/telegraf.conf
index 1035a51a6..a7d0b0875 100644
--- a/etc/telegraf.conf
+++ b/etc/telegraf.conf
@@ -2996,6 +2996,10 @@
 #   ## Defaults to true.
 #   cumulative = true
 #
+#   ## Expiration interval for each histogram. The histogram will be expired if
+#   ## there are no changes in any buckets for this time interval. 0 == no expiration.
+#   # expiration_interval = "0m"
+#
 #   ## Example config that aggregates all fields of the metric.
 #   # [[aggregators.histogram.config]]
 #   #   ## Right borders of buckets (with +Inf implicitly added).
diff --git a/etc/telegraf_windows.conf b/etc/telegraf_windows.conf
index 6aeb263f4..9afde2157 100644
--- a/etc/telegraf_windows.conf
+++ b/etc/telegraf_windows.conf
@@ -2996,6 +2996,10 @@
 #   ## Defaults to true.
 #   cumulative = true
 #
+#   ## Expiration interval for each histogram. The histogram will be expired if
+#   ## there are no changes in any buckets for this time interval. 0 == no expiration.
+#   # expiration_interval = "0m"
+#
 #   ## Example config that aggregates all fields of the metric.
 #   # [[aggregators.histogram.config]]
 #   #   ## Right borders of buckets (with +Inf implicitly added).