diff --git a/lib/Slic3r/GUI/SkeinPanel.pm b/lib/Slic3r/GUI/SkeinPanel.pm
index 11ff0dae4..b130b4784 100644
--- a/lib/Slic3r/GUI/SkeinPanel.pm
+++ b/lib/Slic3r/GUI/SkeinPanel.pm
@@ -134,6 +134,11 @@ sub quick_slice {
         $sprint->apply_config($config);
         $sprint->set_model(Slic3r::Model->read_from_file($input_file));
         
+        {
+            my $extra = $self->extra_variables;
+            $sprint->placeholder_parser->set($_, $extra->{$_}) for keys %$extra;
+        }
+        
         # select output file
         my $output_file;
         if ($params{reslice}) {
diff --git a/lib/Slic3r/Print/Simple.pm b/lib/Slic3r/Print/Simple.pm
index ded003063..8fa9889ff 100644
--- a/lib/Slic3r/Print/Simple.pm
+++ b/lib/Slic3r/Print/Simple.pm
@@ -7,7 +7,8 @@ has '_print' => (
     is      => 'ro',
     default => sub { Slic3r::Print->new },
     handles => [qw(apply_config extruders expanded_output_filepath
-                    total_used_filament total_extruded_volume)],
+                    total_used_filament total_extruded_volume
+                    placeholder_parser)],
 );
 
 has 'duplicate' => (