diff --git a/src/gui/timeline/timeline-controller.cpp b/src/gui/timeline/timeline-controller.cpp
index bd18fc694..5403f6b6c 100644
--- a/src/gui/timeline/timeline-controller.cpp
+++ b/src/gui/timeline/timeline-controller.cpp
@@ -90,9 +90,7 @@ namespace timeline {
                                                  {
                                                    layoutManager.installRootTrack (head, body); 
                                                  }}}
-    {
-      UNIMPLEMENTED ("how to make the controller operative...");
-    }
+    { }
   
   
   TimelineController::~TimelineController()
diff --git a/src/gui/timeline/timeline-widget.cpp b/src/gui/timeline/timeline-widget.cpp
index 1c8b62dd1..6ae5c7e63 100644
--- a/src/gui/timeline/timeline-widget.cpp
+++ b/src/gui/timeline/timeline-widget.cpp
@@ -72,7 +72,7 @@ namespace timeline {
     , layout_{new TimelineLayout{*this}}
     , control_{new TimelineController{identity, trackID, nexus, *layout_}}
     {
-      UNIMPLEMENTED ("build the timeline UI");
+      show_all();
     }
   
   TimelineWidget::~TimelineWidget() { }