diff --git a/nannyml/drift/multivariate/data_reconstruction/calculator.py b/nannyml/drift/multivariate/data_reconstruction/calculator.py
index 9c2ceb2d..0b5fcbb1 100644
--- a/nannyml/drift/multivariate/data_reconstruction/calculator.py
+++ b/nannyml/drift/multivariate/data_reconstruction/calculator.py
@@ -292,6 +292,7 @@ def _populate_thresholds(self, results: pd.DataFrame):
 def _create_multilevel_index():
     chunk_column_names = ['key', 'chunk_index', 'start_index', 'end_index', 'start_date', 'end_date', 'period']
     method_column_names = [
+        'value',
         'sampling_error',
         'upper_confidence_boundary',
         'lower_confidence_boundary',