diff --git a/tests/test_utils_pvpreload.py b/tests/test_utils_pvpreload.py
index 7711a4e5c..e4ed218df 100644
--- a/tests/test_utils_pvpreload.py
+++ b/tests/test_utils_pvpreload.py
@@ -187,7 +187,8 @@ def test_offload(tmp_path, caplog):
             offload()
 
     # Vérifie que le fichier contient bien les bons noms
-    names = std_pickle.load(open(fake_file, "rb"))
+    with open(fake_file, "rb") as f:
+        names = std_pickle.load(f)    
     assert pvname_3 in names
     assert pvname_4 in names