diff --git a/tests/test_utils_logign.py b/tests/test_utils_logign.py
index a44791dce..f3827ef20 100644
--- a/tests/test_utils_logign.py
+++ b/tests/test_utils_logign.py
@@ -17,6 +17,17 @@ def setup_logger():
     add_log_Level(log, "ENLARGE", logging.INFO + 5, func_name="enlarge")
     logcfg("DEBUG")
 
+def reconfigure_logzero_to_stderr():
+    # Remove all existing handlers
+    for h in log.handlers[:]:
+        log.removeHandler(h)
+
+    # Create a handler that writes to stderr (captured by pytest capfd)
+    handler = logging.StreamHandler(sys.stderr)
+    handler.setFormatter(LogFormatter())
+    log.addHandler(handler)
+
+    log.setLevel(logging.DEBUG)
 
 @pytest.mark.parametrize("level,msg,should_appear", [
     ("WARNING", "warn to ignore", False),
@@ -27,6 +38,7 @@ def setup_logger():
 ])
 def test_ignore_log_msg_filter(capfd, level, msg, should_appear):
     # Clear captured output before logging
+    reconfigure_logzero_to_stderr()
     capfd.readouterr()
 
     # Set up filter
@@ -49,6 +61,7 @@ def test_ignore_log_msg_filter(capfd, level, msg, should_appear):
 
 
 def test_ignore_only_by_level(capfd):
+    reconfigure_logzero_to_stderr()
     capfd.readouterr()
 
     with ignore_log_msg(log, lvl="WARNING", msg=None):
@@ -61,6 +74,7 @@ def test_ignore_only_by_level(capfd):
 
 
 def test_ignore_only_by_msg(capfd):
+    reconfigure_logzero_to_stderr()
     capfd.readouterr()
 
     with ignore_log_msg(log, lvl=None, msg="skip this"):
@@ -73,6 +87,7 @@ def test_ignore_only_by_msg(capfd):
 
 
 def test_ignore_nothing_when_all_none(capfd):
+    reconfigure_logzero_to_stderr()
     capfd.readouterr()
 
     with ignore_log_msg(log, lvl=None, msg=None):
@@ -85,6 +100,7 @@ def test_ignore_nothing_when_all_none(capfd):
 
 
 def test_filter_removed_after_context(capfd):
+    reconfigure_logzero_to_stderr()
     capfd.readouterr()
 
     with ignore_log_msg(log, lvl="WARNING", msg="temp msg"):