diff --git a/divelist-gtk.c b/divelist-gtk.c
index ad0f5efe8..acb908a18 100644
--- a/divelist-gtk.c
+++ b/divelist-gtk.c
@@ -59,7 +59,6 @@ static struct DiveList dive_list;
 #define TREESTORE(_dl) GTK_TREE_STORE((_dl).treemodel)
 #define LISTSTORE(_dl) GTK_TREE_STORE((_dl).listmodel)
 
-dive_trip_t *dive_trip_list;
 short autogroup = FALSE;
 static gboolean in_set_cursor = FALSE;
 static gboolean set_selected(GtkTreeModel *model, GtkTreePath *path,
@@ -686,14 +685,6 @@ void update_dive_list_col_visibility(void)
 	return;
 }
 
-static void clear_trip_indexes(void)
-{
-	dive_trip_t *trip;
-
-	for (trip = dive_trip_list; trip != NULL; trip = trip->next)
-		trip->index = 0;
-}
-
 /* Select the iter asked for, and set the keyboard focus on it */
 static void go_to_iter(GtkTreeSelection *selection, GtkTreeIter *iter);
 static void fill_dive_list(void)
diff --git a/divelist.h b/divelist.h
index 60300474b..ac7953287 100644
--- a/divelist.h
+++ b/divelist.h
@@ -22,6 +22,7 @@ extern void upload_all_dives_divelogs_cb();
 #endif
 
 /* divelist core logic functions */
+extern void clear_trip_indexes(void);
 extern dive_trip_t *find_trip_by_idx(int idx);
 extern int dive_nr_sort(int idx_a, int idx_b, timestamp_t when_a, timestamp_t when_b);
 extern int trip_has_selected_dives(dive_trip_t *trip);