diff --git a/samila/functions.py b/samila/functions.py
index 916acd8..5196c84 100644
--- a/samila/functions.py
+++ b/samila/functions.py
@@ -231,8 +231,9 @@ def load_data(data):
     :return: (data1, data2)
     """
     if isinstance(data, io.IOBase):
-        data = json.load(data)
-        if 'data1' not in data or 'data2' not in data:
+        try:
+            data = json.load(data)
+            return data['data1'], data['data2']
+        except Exception as e:
             raise samilaDataError(DATA_PARSING_ERROR)
-        return data['data1'], data['data2']
     raise samilaDataError(DATA_TYPE_ERROR)