diff --git a/src/uml/uml_conf.c b/src/uml/uml_conf.c
index 53a880f1cc..bf19ee7eb1 100644
--- a/src/uml/uml_conf.c
+++ b/src/uml/uml_conf.c
@@ -411,7 +411,7 @@ virCommandPtr umlBuildCommandLine(virConnectPtr conn,
             goto error;
         }
 
-        virCommandAddArgPair(cmd, disk->dst, disk->src);
+        virCommandAddArgPair(cmd, disk->dst, virDomainDiskGetSource(disk));
     }
 
     for (i = 0; i < vm->def->nnets; i++) {
diff --git a/src/uml/uml_driver.c b/src/uml/uml_driver.c
index f5eb05f42f..1ab79fc1bc 100644
--- a/src/uml/uml_driver.c
+++ b/src/uml/uml_driver.c
@@ -2166,13 +2166,14 @@ static int umlDomainAttachUmlDisk(struct uml_driver *driver,
         }
     }
 
-    if (!disk->src) {
+    if (!virDomainDiskGetSource(disk)) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        "%s", _("disk source path is missing"));
         goto error;
     }
 
-    if (virAsprintf(&cmd, "config %s=%s", disk->dst, disk->src) < 0)
+    if (virAsprintf(&cmd, "config %s=%s", disk->dst,
+                    virDomainDiskGetSource(disk)) < 0)
         return -1;
 
     if (umlMonitorCommand(driver, vm, cmd, &reply) < 0)