diff --git a/invesalius/gui/dialogs.py b/invesalius/gui/dialogs.py
index 2df06ae..7ffb213 100644
--- a/invesalius/gui/dialogs.py
+++ b/invesalius/gui/dialogs.py
@@ -3295,7 +3295,7 @@ class ObjectCalibrationDialog(wx.Dialog):
         main_sizer = wx.BoxSizer(wx.VERTICAL)
         main_sizer.Add(self.interactor, 0, wx.EXPAND)
         main_sizer.Add(group_sizer, 0,
-                       wx.EXPAND|wx.GROW|wx.LEFT|wx.TOP|wx.RIGHT|wx.BOTTOM|wx.ALIGN_CENTER_HORIZONTAL, 10)
+                       wx.EXPAND|wx.GROW|wx.LEFT|wx.TOP|wx.RIGHT|wx.BOTTOM, 10)
 
         self.SetSizer(main_sizer)
         main_sizer.Fit(self)
@@ -3586,10 +3586,10 @@ class ICPCorregistrationDialog(wx.Dialog):
         self.progress = wx.Gauge(self, -1)
 
         main_sizer = wx.BoxSizer(wx.VERTICAL)
-        main_sizer.Add(top_sizer, 0, wx.EXPAND|wx.GROW|wx.LEFT|wx.TOP|wx.RIGHT|wx.BOTTOM|wx.ALIGN_CENTER_HORIZONTAL, 10)
+        main_sizer.Add(top_sizer, 0, wx.EXPAND|wx.GROW|wx.LEFT|wx.TOP|wx.RIGHT|wx.BOTTOM, 10)
         main_sizer.Add(self.interactor, 0, wx.EXPAND)
         main_sizer.Add(extra_sizer, 0,
-                       wx.EXPAND|wx.GROW|wx.LEFT|wx.TOP|wx.RIGHT|wx.BOTTOM|wx.ALIGN_CENTER_HORIZONTAL, 10)
+                       wx.EXPAND|wx.GROW|wx.LEFT|wx.TOP|wx.RIGHT|wx.BOTTOM, 10)
         main_sizer.Add(self.progress, 0, wx.EXPAND | wx.ALL, 5)
 
         self.SetSizer(main_sizer)
diff --git a/invesalius/gui/task_navigator.py b/invesalius/gui/task_navigator.py
index 7b5687c..5a79df6 100644
--- a/invesalius/gui/task_navigator.py
+++ b/invesalius/gui/task_navigator.py
@@ -1706,7 +1706,7 @@ class TractographyPanel(wx.Panel):
         border_last = 1
         line_checks = wx.BoxSizer(wx.HORIZONTAL)
         line_checks.Add(checktracts, 0, wx.ALIGN_LEFT | wx.RIGHT | wx.LEFT, border_last)
-        line_checks.Add(checkpeeling, 0, wx.ALIGN_RIGHT | wx.RIGHT | wx.LEFT, border_last)
+        line_checks.Add(checkpeeling, 0, wx.RIGHT | wx.LEFT, border_last)
 
         # Add line sizers into main sizer
         border = 1
--
libgit2 0.21.2