diff --git a/wise-webapp/src/main/java/com/wisemapping/model/MindMapHistory.java b/wise-webapp/src/main/java/com/wisemapping/model/MindMapHistory.java
index d2cda181..b8f2f99d 100755
--- a/wise-webapp/src/main/java/com/wisemapping/model/MindMapHistory.java
+++ b/wise-webapp/src/main/java/com/wisemapping/model/MindMapHistory.java
@@ -73,6 +73,10 @@ public class MindMapHistory {
         return xml;
     }
 
+    public void setXml(byte[] value) {
+        xml = value;
+    }
+
     public byte[] getUnzipXml() throws IOException {
         return ZipUtils.zipToBytes(xml);
     }