diff --git a/logai/dataloader/data_model.py b/logai/dataloader/data_model.py
index 4be68d2..775a1ef 100755
--- a/logai/dataloader/data_model.py
+++ b/logai/dataloader/data_model.py
@@ -33,21 +33,19 @@ class LogRecordObject:
         whether each line is anomalous or not).
     :param _index: The indices of the log data.
     """
-
-    timestamp: pd.DataFrame = pd.DataFrame()
-    attributes: pd.DataFrame = pd.DataFrame()
-    resource: pd.DataFrame = pd.DataFrame()
-    trace_id: pd.DataFrame = pd.DataFrame()
-    span_id: pd.DataFrame = pd.DataFrame()
-    severity_text: pd.DataFrame = pd.DataFrame()
-    severity_number: pd.DataFrame = pd.DataFrame()
-    body: pd.DataFrame = pd.DataFrame()
-    labels: pd.DataFrame = pd.DataFrame()
+    timestamp: pd.DataFrame = field(default_factory=pd.DataFrame)
+    attributes: pd.DataFrame = field(default_factory=pd.DataFrame)
+    resource: pd.DataFrame = field(default_factory=pd.DataFrame)
+    trace_id: pd.DataFrame = field(default_factory=pd.DataFrame)
+    span_id: pd.DataFrame = field(default_factory=pd.DataFrame)
+    severity_text: pd.DataFrame = field(default_factory=pd.DataFrame)
+    severity_number: pd.DataFrame = field(default_factory=pd.DataFrame)
+    body: pd.DataFrame = field(default_factory=pd.DataFrame)
+    labels: pd.DataFrame = field(default_factory=pd.DataFrame)
     _index: np.array = field(init=False)
 
     def __post_init__(self):
         self._index = pd.DataFrame(self.body.index.values)
-
         for field in self.__dataclass_fields__:
             field_content = getattr(self, field)
             if not field_content.empty: