diff --git a/README.md b/README.md
index 70709930..8d76b95c 100644
--- a/README.md
+++ b/README.md
@@ -635,6 +635,16 @@ Specifies the cohort tos option. Valid options: 0 or 1.
 
 Default value: 0.
 
+#### `tos_orphan`
+
+Optional.
+
+Data type: Integer[1].
+
+Enables orphan mode at stated stratum level. The recommended value for tos\_orphan is 2 more than the worst-case externally-reachable source of time.
+Participing ntpd instances must be in a mesh with each others (e.g. peers).
+[ntp.org](http://support.ntp.org/bin/view/Support/OrphanMode)
+
 #### `tinker`
 
 Data type: Boolean.
diff --git a/data/common.yaml b/data/common.yaml
index c2b66737..afd5ca69 100644
--- a/data/common.yaml
+++ b/data/common.yaml
@@ -59,6 +59,7 @@ ntp::tos_floor: 1
 ntp::tos_maxclock: 6
 ntp::tos_minclock: 3
 ntp::tos_minsane: 1
+ntp::tos_orphan: ~
 ntp::tos: false
 ntp::udlc_stratum: 10
 ntp::udlc: false
diff --git a/manifests/init.pp b/manifests/init.pp
index 5acc9b39..39f13f10 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -109,6 +109,10 @@
 # @param peers
 #   List of NTP servers with which to synchronise the local clock.
 #
+# @param tos_orphan
+#   Enables Orphan mode for peer group
+#   Value: Should be set to 2 more than the worst-case externally-reachable source's stratum.
+#
 # @param pool
 #   List of NTP server pools with which to synchronise the local clock.
 #
@@ -255,6 +259,7 @@
   Optional[Integer[1]] $tos_minsane,
   Optional[Integer[1]] $tos_floor,
   Optional[Integer[1]] $tos_ceiling,
+  Optional[Integer[1]] $tos_orphan,
   Variant[Boolean, Integer[0,1]] $tos_cohort,
   Boolean $udlc,
   Optional[Integer[1,15]] $udlc_stratum,
diff --git a/templates/ntp.conf.epp b/templates/ntp.conf.epp
index 697ed69f..e52829a7 100644
--- a/templates/ntp.conf.epp
+++ b/templates/ntp.conf.epp
@@ -101,6 +101,10 @@ ntpsigndsocket <%= $ntp::ntpsigndsocket %>
 <% $ntp::peers.each |$peer| {-%>
 peer <%= $peer %>
 <% } -%>
+<% if $ntp::tos_orphan {-%>
+# Enable peer group orphan mode
+tos orphan <%= $ntp::tos_orphan %>
+<% } -%>
 <% } -%>
 <% unless $ntp::pool.empty {-%>