diff --git a/lib/Slic3r/GUI/MainFrame.pm b/lib/Slic3r/GUI/MainFrame.pm
index cbf303d1a..43ede10b6 100644
--- a/lib/Slic3r/GUI/MainFrame.pm
+++ b/lib/Slic3r/GUI/MainFrame.pm
@@ -33,6 +33,10 @@ sub new {
     $self->_init_tabpanel;
     $self->_init_menubar;
     
+    # set default tooltip timer in msec
+    # SetAutoPop supposedly accepts long integers but some bug doesn't allow for larger values
+    Wx::ToolTip::SetAutoPop(32767);
+    
     # initialize status bar
     $self->{statusbar} = Slic3r::GUI::ProgressStatusBar->new($self, -1);
     $self->{statusbar}->SetStatusText("Version $Slic3r::VERSION - Remember to check for updates at http://slic3r.org/");