diff --git a/tobiko/config.py b/tobiko/config.py
index 4bad82e4a..33022466a 100644
--- a/tobiko/config.py
+++ b/tobiko/config.py
@@ -46,7 +46,14 @@ LOGGING_CONF_GROUP_NAME = "logging"
 LOGGING_OPTIONS = [
     cfg.BoolOpt('capture_log',
                 default=True,
-                help="Whenever to capture LOG during test case execution"),
+                help="Whenever to report debugging log lines"),
+    cfg.StrOpt('line_format',
+               default=('%(asctime)s.%(msecs)03d %(process)d %(levelname)s '
+                        '%(name)s - %(message)s'),
+               help='Default logging line format string'),
+    cfg.StrOpt('date_format',
+               default='%Y-%m-%d %H:%M:%S',
+               help='Default logging date format string'),
 ]
 
 HTTP_CONF_GROUP_NAME = "http"
diff --git a/tobiko/tests/conftest.py b/tobiko/tests/conftest.py
index 29c013622..0862c5d5c 100644
--- a/tobiko/tests/conftest.py
+++ b/tobiko/tests/conftest.py
@@ -50,35 +50,35 @@ def configure_metadata(config):
 def configure_caplog(config):
     tobiko_config = tobiko.tobiko_config()
 
-    if tobiko_config.logging.capture_log is True:
+    if tobiko_config.logging.capture_log:
         if tobiko_config.debug:
-            default = 'DEBUG'
+            level = 'DEBUG'
         else:
-            default = 'INFO'
+            level = 'INFO'
     else:
-        default = 'FATAL'
+        level = 'FATAL'
     for key in ['log_level',
                 'log_file_level',
                 'log_cli_level']:
-        set_default_inicfg(config, key, default)
+        set_default_inicfg(config, key, level)
 
-    default = tobiko_config.logging_default_format_string
-    if default:
+    line_format: str = tobiko_config.logging.line_format
+    if line_format:
         # instance and color are not supported by pytest
-        default = default.replace('%(instance)s', '')
-        default = default.replace('%(color)s', '')
-        if default:
+        line_format = line_format.replace('%(instance)s', '')
+        line_format = line_format.replace('%(color)s', '')
+        if line_format:
             for key in ['log_format',
                         'log_file_format',
                         'log_cli_format']:
-                set_default_inicfg(config, key, default)
+                set_default_inicfg(config, key, line_format)
 
-    default = tobiko_config.log_date_format
-    if default:
+    date_format = tobiko_config.logging.date_format
+    if date_format:
         for key in ['log_date_format',
                     'log_file_date_format',
                     'log_cli_date_format']:
-            set_default_inicfg(config, key, default)
+            set_default_inicfg(config, key, date_format)
 
 
 def configure_junitxml(config):
@@ -87,10 +87,8 @@ def configure_junitxml(config):
 
 def set_default_inicfg(config, key, default):
     value = config.inicfg.setdefault(key, default)
-    if value != default:
-        LOG.debug(f"Set default inicfg: {key} = {value}")
-    else:
-        LOG.debug(f"Keep existing inicfg: {key} = {value}")
+    if value == default:
+        LOG.debug(f"Set default inicfg: {key} = {value!r}")
 
 
 class TestRunnerTimeoutManager(tobiko.SharedFixture):
diff --git a/tobiko/tests/unit/test_conftest.py b/tobiko/tests/unit/test_conftest.py
index b5637cec5..ee6e63d49 100644
--- a/tobiko/tests/unit/test_conftest.py
+++ b/tobiko/tests/unit/test_conftest.py
@@ -55,25 +55,32 @@ class CaplogTest(unit.TobikoUnitTest):
         self.assertEqual('FATAL', pytest_config.inicfg['log_level'])
 
     def test_configure_caplog_log_format(self):
-        self.patch_caplog_config(log_format='<some-format>')
+        self.patch_caplog_config(line_format='<some-format>')
         pytest_config = mock.MagicMock(inicfg={})
         conftest.configure_caplog(pytest_config)
         self.assertEqual('<some-format>', pytest_config.inicfg['log_format'])
 
-    def test_configure_caplog_log_date_format(self):
-        self.patch_caplog_config(log_date_format='<some-format>')
+    def test_configure_caplog_date_format(self):
+        self.patch_caplog_config(date_format='<some-format>')
         pytest_config = mock.MagicMock(inicfg={})
         conftest.configure_caplog(pytest_config)
         self.assertEqual('<some-format>',
                          pytest_config.inicfg['log_date_format'])
 
-    def patch_caplog_config(self, capture_log=False, debug=False,
-                            log_format=None, log_date_format=None):
+    def patch_caplog_config(self,
+                            capture_log: bool = None,
+                            debug: bool = None,
+                            line_format: str = None,
+                            date_format: str = None):
         tobiko_config = self.patch(tobiko, 'tobiko_config').return_value
-        tobiko_config.logging.capture_log = capture_log
-        tobiko_config.debug = debug
-        tobiko_config.logging_default_format_string = log_format
-        tobiko_config.log_date_format = log_date_format
+        if capture_log is not None:
+            tobiko_config.logging.capture_log = capture_log
+        if debug is not None:
+            tobiko_config.debug = debug
+        if line_format is not None:
+            tobiko_config.logging.line_format = line_format
+        if date_format is not None:
+            tobiko_config.logging.date_format = date_format
 
 
 class TimeoutTest(unit.TobikoUnitTest):