diff --git a/lib/Slic3r/GUI/PreviewCanvas.pm b/lib/Slic3r/GUI/PreviewCanvas.pm
index 61a2b20b4..67bc49757 100644
--- a/lib/Slic3r/GUI/PreviewCanvas.pm
+++ b/lib/Slic3r/GUI/PreviewCanvas.pm
@@ -208,7 +208,7 @@ sub mouse_event {
             }
             $self->_drag_start_xy($pos);
         }
-    } elsif ($e->LeftUp || $e->RightUp) {
+    } elsif ($e->LeftUp || $e->MiddleUp || $e->RightUp) {
         if ($self->on_move && defined $self->_drag_volume_idx) {
             $self->on_move->($self->_drag_volume_idx) if $self->_dragged;
         }