diff --git a/src/interface/interface_backend_netcf.c b/src/interface/interface_backend_netcf.c
index 9f93cdd657..78fd4f9bc7 100644
--- a/src/interface/interface_backend_netcf.c
+++ b/src/interface/interface_backend_netcf.c
@@ -894,11 +894,11 @@ static virInterfacePtr netcfInterfaceDefineXML(virConnectPtr conn,
     virInterfaceDef *ifacedef = NULL;
     virInterfacePtr ret = NULL;
 
-    virCheckFlags(0, NULL);
+    virCheckFlags(VIR_INTERFACE_DEFINE_VALIDATE, NULL);
 
     virObjectLock(driver);
 
-    ifacedef = virInterfaceDefParseString(xml, 0);
+    ifacedef = virInterfaceDefParseString(xml, flags);
     if (!ifacedef) {
         /* error was already reported */
         goto cleanup;
diff --git a/src/test/test_driver.c b/src/test/test_driver.c
index 450510ee54..67db02b25d 100644
--- a/src/test/test_driver.c
+++ b/src/test/test_driver.c
@@ -6156,10 +6156,10 @@ testInterfaceDefineXML(virConnectPtr conn,
     virInterfaceDef *objdef;
     virInterfacePtr ret = NULL;
 
-    virCheckFlags(0, NULL);
+    virCheckFlags(VIR_INTERFACE_DEFINE_VALIDATE, NULL);
 
     virObjectLock(privconn);
-    if ((def = virInterfaceDefParseString(xmlStr, 0)) == NULL)
+    if ((def = virInterfaceDefParseString(xmlStr, flags)) == NULL)
         goto cleanup;
 
     if ((obj = virInterfaceObjListAssignDef(privconn->ifaces, def)) == NULL)