diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 318f52331655002ba6dc10e5e50969c81b5f4dad..85ef71b9f40cf50ffcf95ca0e202ba46c0200e72 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -1508,14 +1508,16 @@ int virDomainDeviceVirtioSerialAddressIsValid(
 }
 
 
-static int
+static bool
 virDomainDeviceInfoIsSet(virDomainDeviceInfoPtr info, unsigned int flags)
 {
     if (info->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
-        return 1;
+        return true;
     if (info->alias && !(flags & VIR_DOMAIN_XML_INACTIVE))
-        return 1;
-    return 0;
+        return true;
+    if (info->mastertype != VIR_DOMAIN_CONTROLLER_MASTER_NONE)
+        return true;
+    return false;
 }
 
 
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index f4a38fbf3af912c16ca2d1e1d1b5d3d1ffb136c3..f2cd8eb80091c1cbc440341c3ceddd30526f7676 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -138,6 +138,10 @@ struct _virDomainDeviceUSBMaster {
 typedef struct _virDomainDeviceInfo virDomainDeviceInfo;
 typedef virDomainDeviceInfo *virDomainDeviceInfoPtr;
 struct _virDomainDeviceInfo {
+    /* If adding to this struct, ensure that
+     * virDomainDeviceInfoIsSet() is updated
+     * to consider the new fields
+     */
     char *alias;
     int type;
     union {