diff --git a/include/optlist.h b/include/optlist.h
index 8c380d14c..33a7e2ec7 100644
--- a/include/optlist.h
+++ b/include/optlist.h
@@ -180,7 +180,7 @@ static int optfn_##a(int, int, boolean, char *, char *);
     NHOPTC(autounlock, Behavior, 80, opt_out, set_in_game,
                 Yes, Yes, No, Yes, NoAlias,
                 "action to take when encountering locked door or chest")
-    NHOPTB(bgcolors, Behavior, 0, opt_out, set_in_game,
+    NHOPTB(bgcolors, Map, 0, opt_out, set_in_game,
            On, Yes, No, No, NoAlias, &iflags.bgcolors, Term_Off,
            "use background color for some map hilighting")
     NHOPTO("bind keys", Advanced, o_bind_keys, BUFSZ, opt_in, set_in_game,