diff --git a/lib/Slic3r/GUI/Tab.pm b/lib/Slic3r/GUI/Tab.pm
index 65e6de494..d40763df4 100644
--- a/lib/Slic3r/GUI/Tab.pm
+++ b/lib/Slic3r/GUI/Tab.pm
@@ -37,9 +37,9 @@ sub new {
         
         # buttons
         $self->{btn_save_preset} = Wx::BitmapButton->new($self, -1, Wx::Bitmap->new("$Slic3r::var/disk.png", wxBITMAP_TYPE_PNG), 
-            wxDefaultPosition, [16,16], wxBORDER_NONE);
+            wxDefaultPosition, wxDefaultSize, wxBORDER_NONE);
         $self->{btn_delete_preset} = Wx::BitmapButton->new($self, -1, Wx::Bitmap->new("$Slic3r::var/delete.png", wxBITMAP_TYPE_PNG), 
-            wxDefaultPosition, [16,16], wxBORDER_NONE);
+            wxDefaultPosition, wxDefaultSize, wxBORDER_NONE);
         $self->{btn_save_preset}->SetToolTipString("Save current " . lc($self->title));
         $self->{btn_delete_preset}->SetToolTipString("Delete this preset");
         $self->{btn_delete_preset}->Disable;