diff --git a/lib/ntk b/lib/ntk
index 38275d6..6455799 160000
--- a/lib/ntk
+++ b/lib/ntk
@@ -1 +1 @@
-Subproject commit 38275d616800d5af826fd4a9c761a98068e7311a
+Subproject commit 645579913d0bfbfdcc9cd0107dd55bd121a99990
diff --git a/timeline/src/Track.C b/timeline/src/Track.C
index f772422..bad2943 100644
--- a/timeline/src/Track.C
+++ b/timeline/src/Track.C
@@ -1075,7 +1075,7 @@ Track::handle ( int m )
         {
             Logger log( this );
 
-            if ( ! Fl::event_shift() )
+            if ( ! Fl::event_alt() )
                 return Fl_Group::handle( m );
 
             int d = Fl::event_dy();