diff --git a/doc/source/support-matrix.ini b/doc/source/support-matrix.ini
index f0dbf35e69e7..3679982c41f1 100644
--- a/doc/source/support-matrix.ini
+++ b/doc/source/support-matrix.ini
@@ -159,7 +159,7 @@ title=Detach virtual network interface from instance
 status=optional
 notes=See notes for attach-interface operation.
 cli=nova interface-detach <server> <port_id>
-driver-impl-xenserver=missing
+driver-impl-xenserver=complete
 driver-impl-libvirt-kvm-x86=complete
 driver-impl-libvirt-kvm-ppc64=complete
 driver-impl-libvirt-kvm-s390x=complete