diff --git a/tests/test_server_side_scripting.py b/tests/test_server_side_scripting.py
index 65f1d6c7a7fba42010cb67ff5c3b5e77072a1872..1ad258ea335a1ab7a35d7ab2b1a5880bfb0c56de 100644
--- a/tests/test_server_side_scripting.py
+++ b/tests/test_server_side_scripting.py
@@ -185,7 +185,7 @@ def test_call_err():
     assert xml.xpath("/Response/script/@code")[0] == "1"
     assert xml.xpath("/Response/script/call")[0].text == "err"
     assert xml.xpath("/Response/script/stdout")[0].text is None
-    assert_stderr(xml.xpath("/Response/script/stderr")[0].text)
+    assert xml.xpath("/Response/script/stderr")[0].text == "err"
 
 
 def test_run_server_side_script_with_file_as_positional_param():