diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 31c132b94eced3236d62396684b7d969490dad49..9ade5072bdb3725337f546376dcba5961f97b1c8 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -1992,8 +1992,9 @@
             the <code>type</code> attribute selects the primary
             backend driver name, while the <code>format</code>
             attribute provides the format type. For example, LXC
-            supports a type of "loop", with a format of "raw". QEMU
-            supports a type of "path" or "handle", but no formats.
+            supports a type of "loop", with a format of "raw" or
+            "nbd" with any format. QEMU supports a type of "path"
+            or "handle", but no formats.
           </li>
         </ul>
       </dd>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 6078b7a7588673e0ec6a87532581b9facd18e93b..800442896e7cb56e1308abb18bf99358e7b1c1c3 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -1675,6 +1675,7 @@
             <value>path</value>
             <value>handle</value>
             <value>loop</value>
+            <value>nbd</value>
           </choice>
         </attribute>
       </optional>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index ddf9ace16e7654e6d562cbef91d710ff42cd150d..862b9970cbf008023e74b8b410d9d84e09ae4685 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -343,7 +343,8 @@ VIR_ENUM_IMPL(virDomainFSDriverType, VIR_DOMAIN_FS_DRIVER_TYPE_LAST,
               "default",
               "path",
               "handle",
-              "loop")
+              "loop",
+              "nbd")
 
 VIR_ENUM_IMPL(virDomainFSAccessMode, VIR_DOMAIN_FS_ACCESSMODE_LAST,
               "passthrough",
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index b5a0db83d23a9b6827bfeecdd51efda098ede74f..a9d34105d9470699237f7f5865ac089459b4899a 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -801,6 +801,7 @@ enum virDomainFSDriverType {
     VIR_DOMAIN_FS_DRIVER_TYPE_PATH,
     VIR_DOMAIN_FS_DRIVER_TYPE_HANDLE,
     VIR_DOMAIN_FS_DRIVER_TYPE_LOOP,
+    VIR_DOMAIN_FS_DRIVER_TYPE_NBD,
 
     VIR_DOMAIN_FS_DRIVER_TYPE_LAST
 };
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 372e1a3215301e2ee82dfda139e76bdb31060db0..eddc2636800dd07e4b8a5d2df7bced475f26f7ca 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -140,6 +140,7 @@ VIR_ENUM_IMPL(qemuDomainFSDriver, VIR_DOMAIN_FS_DRIVER_TYPE_LAST,
               "local",
               "local",
               "handle",
+              NULL,
               NULL);
 
 
diff --git a/tests/lxcxml2xmldata/lxc-disk-formats.xml b/tests/lxcxml2xmldata/lxc-disk-formats.xml
index da53cf22b0e1ee35b4dadd3d7c9a7e5e76c59dc2..e9530650b414d66b022f8bfa98a2509813cb4ccd 100644
--- a/tests/lxcxml2xmldata/lxc-disk-formats.xml
+++ b/tests/lxcxml2xmldata/lxc-disk-formats.xml
@@ -19,6 +19,11 @@
       <source file='/root/container.img'/>
       <target dir='/'/>
     </filesystem>
+    <filesystem type='file' accessmode='passthrough'>
+      <driver type='nbd' format='qcow2'/>
+      <source file='/root/container.qcow2'/>
+      <target dir='/home'/>
+    </filesystem>
     <console type='pty'>
       <target type='lxc' port='0'/>
     </console>