diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index b9119d9d18c..9ef28d283b7 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -722,6 +722,7 @@ static Network *network_free(Network *network) {
 
         /* DHCPv6 client */
         free(network->dhcp6_mudurl);
+        free(network->dhcp6_hostname);
         strv_free(network->dhcp6_user_class);
         strv_free(network->dhcp6_vendor_class);
         set_free(network->dhcp6_request_options);