#6577: fix (hopefully) all links to builtin instead of module/class-specific objects.
diff --git a/Doc/library/curses.rst b/Doc/library/curses.rst
index 01689a2..c53b105 100644
--- a/Doc/library/curses.rst
+++ b/Doc/library/curses.rst
@@ -186,7 +186,7 @@
 
 .. function:: filter()
 
-   The :func:`filter` routine, if used, must be called before :func:`initscr` is
+   The :func:`.filter` routine, if used, must be called before :func:`initscr` is
    called.  The effect is that, during those calls, LINES is set to 1; the
    capabilities clear, cup, cud, cud1, cuu1, cuu, vpa are disabled; and the home
    string is set to the value of cr. The effect is that the cursor is confined to