diff --git a/beamerThemeOtagoPlain/beamercolorthemeOtagoPlain.sty b/beamerThemeOtagoPlain/beamercolorthemeOtagoPlain.sty
index 82e22e0..9f02d3b 100644
--- a/beamerThemeOtagoPlain/beamercolorthemeOtagoPlain.sty
+++ b/beamerThemeOtagoPlain/beamercolorthemeOtagoPlain.sty
@@ -181,11 +181,7 @@
 \setbeamercolor{quotation}{}
 \setbeamercolor{quote}{parent=quotation}
 
-% For some reason the following doesn't work --- the page number comes
-% out as gray on a red background. As a workaround, we'll just set the
-% colours directly, which _does_ work (!?!?).
-% \setbeamercolor{page number in head/foot}{parent=palette tertiary}
-\setbeamercolor{page number in head/foot}{fg=black}
+\setbeamercolor{page number in head/foot}{parent=palette quaternary}
 
 \setbeamercolor{qed symbol}{parent=structure}