diff --git a/internal/definitions/service/dns_server.go b/internal/definitions/service/dns_server.go
new file mode 100644
index 0000000..efdc690
--- /dev/null
+++ b/internal/definitions/service/dns_server.go
@@ -0,0 +1,6 @@
+package service
+
+type DNSServer struct {
+	Interface string `json:"interface"`
+	Comment   string `json:"comment,omitempty"`
+}
diff --git a/internal/definitions/service/service.go b/internal/definitions/service/service.go
index 040f979..109947b 100644
--- a/internal/definitions/service/service.go
+++ b/internal/definitions/service/service.go
@@ -3,4 +3,5 @@ package service
 type Service struct {
 	DHCPv4Servers []DHCPv4Server `json:"dhcp_v4_servers" validate:"required,dive"`
 	DHCPv6Servers []DHCPv6Server `json:"dhcp_v6_servers" validate:"required,dive"`
+	DNSServers    []DNSServer    `json:"dns_servers" validate:"required,dive"`
 }