diff --git a/src/core/gcal-shell-search-provider.c b/src/core/gcal-shell-search-provider.c
index 165436e8..a849629c 100644
--- a/src/core/gcal-shell-search-provider.c
+++ b/src/core/gcal-shell-search-provider.c
@@ -407,6 +407,7 @@ gcal_shell_search_provider_add_event (GcalTimelineSubscriber *subscriber,
 
 static void
 gcal_shell_search_provider_update_event (GcalTimelineSubscriber *subscriber,
+                                         GcalEvent              *old_event,
                                          GcalEvent              *event)
 {
 }
diff --git a/src/core/gcal-timeline-subscriber.h b/src/core/gcal-timeline-subscriber.h
index 2ad5966c..fa8fe0f0 100644
--- a/src/core/gcal-timeline-subscriber.h
+++ b/src/core/gcal-timeline-subscriber.h
@@ -44,6 +44,7 @@ struct _GcalTimelineSubscriberInterface
                                                                   GcalEvent              *event);
 
   void               (*update_event)                             (GcalTimelineSubscriber *self,
+                                                                  GcalEvent              *old_event,
                                                                   GcalEvent              *event);
 
   void               (*remove_event)                             (GcalTimelineSubscriber *self,
diff --git a/src/core/gcal-timeline.c b/src/core/gcal-timeline.c
index f815ed05..8a9ba080 100644
--- a/src/core/gcal-timeline.c
+++ b/src/core/gcal-timeline.c
@@ -207,6 +207,7 @@ add_event_to_subscriber (GcalTimelineSubscriber *subscriber,
 
 static void
 update_subscriber_event (GcalTimelineSubscriber *subscriber,
+                         GcalEvent              *old_event,
                          GcalEvent              *event)
 {
   GCAL_TRACE_MSG ("Updating event '%s' (%s) at subscriber %s",
@@ -214,7 +215,7 @@ update_subscriber_event (GcalTimelineSubscriber *subscriber,
                   gcal_event_get_uid (event),
                   G_OBJECT_TYPE_NAME (subscriber));
 
-  GCAL_TIMELINE_SUBSCRIBER_GET_IFACE (subscriber)->update_event (subscriber, event);
+  GCAL_TIMELINE_SUBSCRIBER_GET_IFACE (subscriber)->update_event (subscriber, old_event, event);
 }
 static void
 remove_event_from_subscriber (GcalTimelineSubscriber *subscriber,
@@ -741,7 +742,7 @@ timeline_source_dispatch (GSource     *source,
               }
 
             if (subscriber)
-              update_subscriber_event (subscriber, event);
+              update_subscriber_event (subscriber, queue_data->old_event, event);
           }
           break;
 
diff --git a/src/gui/event-editor/gcal-date-chooser.c b/src/gui/event-editor/gcal-date-chooser.c
index 4815d831..6755a299 100644
--- a/src/gui/event-editor/gcal-date-chooser.c
+++ b/src/gui/event-editor/gcal-date-chooser.c
@@ -580,9 +580,10 @@ gcal_date_chooser_remove_event (GcalTimelineSubscriber *subscriber,
 
 static void
 gcal_date_chooser_update_event (GcalTimelineSubscriber *subscriber,
+                                GcalEvent              *old_event,
                                 GcalEvent              *event)
 {
-  gcal_date_chooser_remove_event (subscriber, event);
+  gcal_date_chooser_remove_event (subscriber, old_event);
   gcal_date_chooser_add_event (subscriber, event);
 }
 
diff --git a/src/gui/views/gcal-agenda-view.c b/src/gui/views/gcal-agenda-view.c
index 6ed7356b..ff150320 100644
--- a/src/gui/views/gcal-agenda-view.c
+++ b/src/gui/views/gcal-agenda-view.c
@@ -601,11 +601,12 @@ gcal_agenda_view_remove_event (GcalTimelineSubscriber *subscriber,
 
 static void
 gcal_agenda_view_update_event (GcalTimelineSubscriber *subscriber,
+                               GcalEvent              *old_event,
                                GcalEvent              *event)
 {
   GCAL_ENTRY;
 
-  gcal_agenda_view_remove_event (subscriber, event);
+  gcal_agenda_view_remove_event (subscriber, old_event);
   gcal_agenda_view_add_event (subscriber, event);
 
   GCAL_EXIT;
diff --git a/src/gui/views/gcal-month-view.c b/src/gui/views/gcal-month-view.c
index af0bcfc3..b3c4bba2 100644
--- a/src/gui/views/gcal-month-view.c
+++ b/src/gui/views/gcal-month-view.c
@@ -1161,13 +1161,14 @@ gcal_month_view_remove_event (GcalTimelineSubscriber *subscriber,
 
 static void
 gcal_month_view_update_event (GcalTimelineSubscriber *subscriber,
+                              GcalEvent              *old_event,
                               GcalEvent              *event)
 {
   GCAL_ENTRY;
 
   g_assert (event != NULL);
 
-  gcal_month_view_remove_event (subscriber, event);
+  gcal_month_view_remove_event (subscriber, old_event);
   gcal_month_view_add_event (subscriber, event);
 
   GCAL_EXIT;
diff --git a/src/gui/views/gcal-week-view.c b/src/gui/views/gcal-week-view.c
index 0f98c144..4eb14a8a 100644
--- a/src/gui/views/gcal-week-view.c
+++ b/src/gui/views/gcal-week-view.c
@@ -503,6 +503,7 @@ gcal_week_view_add_event (GcalTimelineSubscriber *subscriber,
 
 static void
 gcal_week_view_update_event (GcalTimelineSubscriber *subscriber,
+                             GcalEvent              *old_event,
                              GcalEvent              *event)
 {
   GcalWeekView *self = GCAL_WEEK_VIEW (subscriber);
@@ -510,7 +511,7 @@ gcal_week_view_update_event (GcalTimelineSubscriber *subscriber,
 
   GCAL_ENTRY;
 
-  event_id = gcal_event_get_uid (event);
+  event_id = gcal_event_get_uid (old_event);
   gcal_week_header_remove_event (GCAL_WEEK_HEADER (self->header), event_id);
   gcal_week_grid_remove_event (GCAL_WEEK_GRID (self->week_grid), event_id);
 
diff --git a/src/search/gcal-search-model.c b/src/search/gcal-search-model.c
index f67e4f13..e5e8b94c 100644
--- a/src/search/gcal-search-model.c
+++ b/src/search/gcal-search-model.c
@@ -171,6 +171,7 @@ gcal_search_model_add_event (GcalTimelineSubscriber *subscriber,
 
 static void
 gcal_search_model_update_event (GcalTimelineSubscriber *subscriber,
+                                GcalEvent              *old_event,
                                 GcalEvent              *event)
 {
 }