diff --git a/interface/ri_oper.py b/interface/ri_oper.py
index 86bcbe4..5e6065b 100644
--- a/interface/ri_oper.py
+++ b/interface/ri_oper.py
@@ -212,9 +212,9 @@ class ConfigureFstab(Mount):
             instance = ri_data.MountPoint.dict[k]
             if check_mount_point(instance.device, instance.directory): continue
             if instance.filesystem != ''  and instance.directory !='':
-                fstab += "/dev/%s %s %s\n" %(d.device, d.directory, d.filesystem)
+                fstab += "/dev/%s %s %s\n" %(instance.device, instance.directory, instance.filesystem)
             elif instance.filesystem == 'swap' and flag:
-                fstab += "/dev/%s swap swap\n" %d.device
+                fstab += "/dev/%s swap swap\n" %instance.device
                 flag=False
         return fstab