diff --git a/src/historyview.h b/src/historyview.h
index 587af37..e444add 100644
--- a/src/historyview.h
+++ b/src/historyview.h
@@ -35,6 +35,7 @@
 
 GType      history_view_get_type (void) G_GNUC_CONST;
 GtkWidget *history_view_new      (void);
+void       history_view_set_filter_string(HistoryView *, const char*);
 
 G_END_DECLS