diff --git a/net/openntpd/Makefile b/net/openntpd/Makefile
index 46917c88c..12d565801 100644
--- a/net/openntpd/Makefile
+++ b/net/openntpd/Makefile
@@ -94,6 +94,8 @@ define Package/openntpd/install
 	install -m0644 ./files/ntpd.conf $(1)/etc/
 	install -d -m0755 $(1)/etc/init.d
 	install -m0755 ./files/ntpd.init $(1)/etc/init.d/ntpd
+	install -d -m0755 $(1)/etc/hotplug.d/iface
+	install -m0755 ./files/ntpd.hotplug $(1)/etc/hotplug.d/iface/20-ntpd
 endef
 
 $(eval $(call BuildPackage,openntpd))
diff --git a/net/openntpd/files/ntpd.hotplug b/net/openntpd/files/ntpd.hotplug
new file mode 100644
index 000000000..f165e6b21
--- /dev/null
+++ b/net/openntpd/files/ntpd.hotplug
@@ -0,0 +1,10 @@
+NAME=ntpd
+CONFIG=/etc/$NAME.conf
+COMMAND=/usr/sbin/$NAME
+
+[ "$ACTION" = "ifup" -a "$INTERFACE" = "wan" ] && {
+        [ -x $COMMAND ] && [ -r $CONFIG ] && {
+		killall ntpd
+		/etc/init.d/ntpd start
+        } &
+}