diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index d6a1fc92af..7ae63cc723 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -4989,7 +4989,7 @@ virDomainDiskSourceParse(xmlNodePtr node,
             goto cleanup;
         }
 
-        if ((src->protocol = virStorageNetProtocolTypeFromString(protocol)) < 0){
+        if ((src->protocol = virStorageNetProtocolTypeFromString(protocol)) <= 0) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                            _("unknown protocol type '%s'"), protocol);
             goto cleanup;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 31d078199c..0a7b2ff597 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3046,7 +3046,8 @@ qemuNetworkDriveGetPort(int protocol,
 
         case VIR_STORAGE_NET_PROTOCOL_RBD:
         case VIR_STORAGE_NET_PROTOCOL_LAST:
-            /* not aplicable */
+        case VIR_STORAGE_NET_PROTOCOL_NONE:
+            /* not applicable */
             return -1;
     }
 
@@ -3262,6 +3263,7 @@ qemuBuildNetworkDriveURI(int protocol,
 
 
         case VIR_STORAGE_NET_PROTOCOL_LAST:
+        case VIR_STORAGE_NET_PROTOCOL_NONE:
             goto cleanup;
     }
 
@@ -11080,6 +11082,7 @@ qemuParseCommandLine(virCapsPtr qemuCaps,
                 case VIR_STORAGE_NET_PROTOCOL_FTPS:
                 case VIR_STORAGE_NET_PROTOCOL_TFTP:
                 case VIR_STORAGE_NET_PROTOCOL_LAST:
+                case VIR_STORAGE_NET_PROTOCOL_NONE:
                     /* ignored for now */
                     break;
                 }
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index d3e14eae96..2b852ebe69 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12390,6 +12390,7 @@ qemuDomainSnapshotPrepareDiskExternalBackingInactive(virDomainDiskDefPtr disk)
 
     case VIR_STORAGE_TYPE_NETWORK:
         switch ((virStorageNetProtocol) disk->src.protocol) {
+        case VIR_STORAGE_NET_PROTOCOL_NONE:
         case VIR_STORAGE_NET_PROTOCOL_NBD:
         case VIR_STORAGE_NET_PROTOCOL_RBD:
         case VIR_STORAGE_NET_PROTOCOL_SHEEPDOG:
@@ -12455,6 +12456,7 @@ qemuDomainSnapshotPrepareDiskExternalOverlayActive(virDomainSnapshotDiskDefPtr d
         case VIR_STORAGE_NET_PROTOCOL_GLUSTER:
             return 0;
 
+        case VIR_STORAGE_NET_PROTOCOL_NONE:
         case VIR_STORAGE_NET_PROTOCOL_NBD:
         case VIR_STORAGE_NET_PROTOCOL_RBD:
         case VIR_STORAGE_NET_PROTOCOL_SHEEPDOG:
@@ -12597,6 +12599,7 @@ qemuDomainSnapshotPrepareDiskInternal(virConnectPtr conn,
 
     case VIR_STORAGE_TYPE_NETWORK:
         switch ((virStorageNetProtocol) disk->src.protocol) {
+        case VIR_STORAGE_NET_PROTOCOL_NONE:
         case VIR_STORAGE_NET_PROTOCOL_NBD:
         case VIR_STORAGE_NET_PROTOCOL_RBD:
         case VIR_STORAGE_NET_PROTOCOL_SHEEPDOG:
diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 856b72620d..b90cdc9fb5 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -72,6 +72,7 @@ VIR_ENUM_IMPL(virStorageFileFeature,
               )
 
 VIR_ENUM_IMPL(virStorageNetProtocol, VIR_STORAGE_NET_PROTOCOL_LAST,
+              "none",
               "nbd",
               "rbd",
               "sheepdog",
diff --git a/src/util/virstoragefile.h b/src/util/virstoragefile.h
index d3560a82a1..082ff5b7e5 100644
--- a/src/util/virstoragefile.h
+++ b/src/util/virstoragefile.h
@@ -119,6 +119,7 @@ struct _virStorageTimestamps {
 
 /* Information related to network storage */
 typedef enum {
+    VIR_STORAGE_NET_PROTOCOL_NONE,
     VIR_STORAGE_NET_PROTOCOL_NBD,
     VIR_STORAGE_NET_PROTOCOL_RBD,
     VIR_STORAGE_NET_PROTOCOL_SHEEPDOG,