diff --git a/format-master.xml b/format-master.xml
index 7e3fc58..146cda4 100755
--- a/format-master.xml
+++ b/format-master.xml
@@ -111,9 +111,7 @@
 	<include href="modules/number-formatting.xml" />
 	
 	<!-- Paper calendar and teaching dates. -->
-<!-- 
-	<include href="modules/paper_calendar.xml" />
- -->
+	<include href="modules/paper-calendar.xml" />
 	<include href="modules/paper-calendar-dates.xml" />