diff --git a/dt-cart/backend/service.py b/dt-cart/backend/service.py
index 2c824c0..6aec393 100644
--- a/dt-cart/backend/service.py
+++ b/dt-cart/backend/service.py
@@ -15,8 +15,8 @@ def run_regression(
     dataset_params: DatasetParams,
     tree_params: DecisionTreeParams,
 ) -> RegressionResult:
+    dataset: Dataset = Dataset(path=path, file=file)
     try:
-        dataset: Dataset = Dataset(path=path, file=file)
         data = dataset.read(dataset_params)
         splitted_dataset: SplittedDataset = dataset.split_regression(
             data=data,
@@ -38,8 +38,8 @@ def run_classification(
     dataset_params: DatasetParams,
     tree_params: DecisionTreeParams,
 ) -> ClassificationResult:
+    dataset: Dataset = Dataset(path=path, file=file)
     try:
-        dataset: Dataset = Dataset(path=path, file=file)
         data = dataset.read(dataset_params)
         splitted_dataset: SplittedDataset = dataset.split_classification(
             data=data,