diff --git a/src/xenconfig/xen_xm.c b/src/xenconfig/xen_xm.c
index fe46d91744..1e57e2488e 100644
--- a/src/xenconfig/xen_xm.c
+++ b/src/xenconfig/xen_xm.c
@@ -201,6 +201,7 @@ xenParseXMDisk(virConfPtr conf, virDomainDefPtr def, int xendConfigVersion)
             skipdisk:
             list = list->next;
             virDomainDiskDefFree(disk);
+            disk = NULL;
         }
     }