diff --git a/cli/tek.rs b/cli/tek.rs
index ba62df80..f736cb52 100644
--- a/cli/tek.rs
+++ b/cli/tek.rs
@@ -148,16 +148,16 @@ impl Cli {
             if let &Mode::Arranger { scenes, tracks, track_width, .. } = mode {
                 app.arranger = Default::default();
                 app.selected = Selection::Clip(1, 1);
-                app.scenes_add(scenes);
-                app.tracks_add(tracks, Some(track_width), &[], &[]);
+                app.scenes_add(scenes)?;
+                app.tracks_add(tracks, Some(track_width), &[], &[])?;
             }
             jack.sync_lead(self.sync_lead, |mut state|{
                 let clock = app.clock();
                 clock.playhead.update_from_sample(state.position.frame() as f64);
                 state.position.bbt = Some(clock.bbt());
                 state.position
-            });
-            jack.sync_follow(self.sync_follow);
+            })?;
+            jack.sync_follow(self.sync_follow)?;
             Ok(app)
         })?)
     }