diff --git a/fluorescence_assay/plate_reader.py b/fluorescence_assay/plate_reader.py
index 9f7c180..c0c7cd4 100644
--- a/fluorescence_assay/plate_reader.py
+++ b/fluorescence_assay/plate_reader.py
@@ -4,7 +4,6 @@
 from abc import ABC, abstractmethod
 from dataclasses import dataclass, field
 from typing import Optional
-
 from bs4 import BeautifulSoup
 
 logger = logging.getLogger(__name__)
@@ -74,5 +73,5 @@ def fix_type(val):
         return fix_type(
             self._data.select(
                 f'Section[Name="{section}"] > Parameters > Parameter[Name="{parameter}"]'
-            )
+            )[0]["Value"]
         )