diff --git a/cocos/editor-support/cocostudio/FlatBuffersSerialize.cpp b/cocos/editor-support/cocostudio/FlatBuffersSerialize.cpp
index 42fe6d7c8e..fccc97bbc2 100644
--- a/cocos/editor-support/cocostudio/FlatBuffersSerialize.cpp
+++ b/cocos/editor-support/cocostudio/FlatBuffersSerialize.cpp
@@ -175,6 +175,8 @@ std::string FlatBuffersSerialize::serializeFlatBuffersWithXMLFile(const std::str
                 attribute = attribute->Next();
             if (attribute)
                 _csdVersion = attribute->Value();
+            
+            _csdVersion = "2.1.0.0";
         }
 
         if (strcmp("Content", element->Name()) == 0)