diff --git a/ewoksorange/bindings/owwidgets.py b/ewoksorange/bindings/owwidgets.py
index 840653b518381fdfce6a0be3b5e87fdc57a57713..a7e64fb528aed8e272743862ad41efe0ce7d5775 100644
--- a/ewoksorange/bindings/owwidgets.py
+++ b/ewoksorange/bindings/owwidgets.py
@@ -236,7 +236,7 @@ class OWEwoksWidgetNoThread(OWEwoksBaseWidget, **ow_build_opts):
     """Widget which will executeEwoksTask the ewokscore.Task directly"""
 
     def __init__(self, *args, **kwargs):
-        super().__init__(self, *args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.__taskExecutor = TaskExecutor(self.ewokstaskclass)
 
     def executeEwoksTask(self):
@@ -258,7 +258,7 @@ class OWEwoksWidgetNoThread(OWEwoksBaseWidget, **ow_build_opts):
 
 class _OWEwoksThreadedBaseWidget(OWEwoksBaseWidget, **ow_build_opts):
     def __init__(self, *args, **kwargs):
-        super().__init__(self, *args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.__taskProgress = QProgress()
         self.__taskProgress.sigProgressChanged.connect(self.progressBarSet)
 
@@ -306,7 +306,7 @@ class OWEwoksWidgetOneThread(_OWEwoksThreadedBaseWidget, **ow_build_opts):
     """
 
     def __init__(self, *args, **kwargs):
-        super().__init__(self, *args, **kwargs)
+        super().__init__(*args, **kwargs)
         self.__taskExecutor = ThreadedTaskExecutor(ewokstaskclass=self.ewokstaskclass)
         self.__taskExecutor.finished.connect(self._ewoksTaskFinishedCallback)
 
diff --git a/ewoksorange/canvas/__main__.py b/ewoksorange/canvas/__main__.py
index e5dc8e385062edcf6ef9bc49ed4043c07c407305..fa626807b4e4a14e52e9ace888219bb95e2a93d8 100644
--- a/ewoksorange/canvas/__main__.py
+++ b/ewoksorange/canvas/__main__.py
@@ -18,35 +18,46 @@ from ..orange_version import ORANGE_VERSION
 if ORANGE_VERSION == ORANGE_VERSION.henri_fork:
     import argparse
 
-    arg_parser = argparse.ArgumentParser()
-    arg_parser.add_argument(
-        "--no-discovery",
-        action="store_true",
-        help="Don't run widget discovery (use full cache instead)",
-    )
-    arg_parser.add_argument(
-        "--force-discovery",
-        action="store_true",
-        help="Force full widget discovery (invalidate cache)",
-    )
-    arg_parser.add_argument(
-        "--no-welcome", action="store_true", help="Don't show welcome dialog."
-    )
-    arg_parser.add_argument(
-        "--no-splash", action="store_true", help="Don't show splash screen."
-    )
-    arg_parser.add_argument(
-        "--stylesheet",
-        help="Application level CSS style sheet to use",
-        type=str,
-        default=None,
-    )
-    arg_parser.add_argument(
-        "--config",
-        help="Configuration namespace",
-        type=str,
-        default=None,
-    )
+    def arg_parser():
+        parser = argparse.ArgumentParser()
+        parser.add_argument(
+            "--no-discovery",
+            action="store_true",
+            help="Don't run widget discovery (use full cache instead)",
+        )
+        parser.add_argument(
+            "--force-discovery",
+            action="store_true",
+            help="Force full widget discovery (invalidate cache)",
+        )
+        parser.add_argument(
+            "--no-welcome", action="store_true", help="Don't show welcome dialog."
+        )
+        parser.add_argument(
+            "--no-splash", action="store_true", help="Don't show splash screen."
+        )
+        parser.add_argument(
+            "--stylesheet",
+            help="Application level CSS style sheet to use",
+            type=str,
+            default=None,
+        )
+        parser.add_argument(
+            "--config",
+            help="Configuration namespace",
+            type=str,
+            default=None,
+        )
+        parser.add_argument(
+            "-l",
+            "--log-level",
+            help="Logging level (0, 1, 2, 3, 4)",
+            type=int,
+            default=1,
+        )
+        return parser
+
+
 else:
     from orangecanvas.main import arg_parser
 
diff --git a/ewoksorange/ewoks_addon/orangecontrib/ewoks_defaults/__init__.py b/ewoksorange/ewoks_addon/orangecontrib/ewoks_defaults/__init__.py
index ee85c0ddc1bb00502ce7c416d4a856b63a3f88b7..6c8cc5333794cb232bbd9b5c48e417ef8fa446ec 100644
--- a/ewoksorange/ewoks_addon/orangecontrib/ewoks_defaults/__init__.py
+++ b/ewoksorange/ewoks_addon/orangecontrib/ewoks_defaults/__init__.py
@@ -39,8 +39,8 @@ def default_owwidget_class(task_class: Task) -> Tuple[OWEwoksBaseWidget, str]:
         description = f"Orange widget is missing for Ewoks task {task_class.__name__}"
         want_main_area = False
 
-        def __init__(self):
-            super().__init__()
+        def __init__(self, *args, **kw):
+            super().__init__(*args, **kw)
             self.handleNewSignals()
 
     widget_class = DefaultOwWidget