diff --git a/designer-base/src/main/java/com/fr/design/mainframe/vcs/VcsTableEntity.java b/designer-base/src/main/java/com/fr/design/mainframe/vcs/VcsTableEntity.java
index 200aa38e7a..6911b7a93a 100644
--- a/designer-base/src/main/java/com/fr/design/mainframe/vcs/VcsTableEntity.java
+++ b/designer-base/src/main/java/com/fr/design/mainframe/vcs/VcsTableEntity.java
@@ -16,7 +16,7 @@ public class VcsTableEntity implements TableEntity{
     private static final String MB = "MB";
 
     private static final String VERSION = "V.";
-    private static final double MB_SIZE = 1024.0;
+    private static final double MB_SIZE = 1024.0 * 1024;
     private VcsEntity entity;