--- res/res_calendar_caldav.c	(Asterisk 13.19)
+++ res/res_calendar_caldav.c	(working copy)
@@ -23,2 +23,3 @@
 /*** MODULEINFO
+	<depend>res_calendar</depend>
 	<depend>neon</depend>
--- res/res_calendar_icalendar.c	(Asterisk 13.19)
+++ res/res_calendar_icalendar.c	(working copy)
@@ -23,2 +23,3 @@
 /*** MODULEINFO
+	<depend>res_calendar</depend>
 	<depend>neon</depend>
--- res/res_calendar_exchange.c	(Asterisk 13.19)
+++ res/res_calendar_exchange.c	(working copy)
@@ -23,2 +23,3 @@
 /*** MODULEINFO
+	<depend>res_calendar</depend>
 	<depend>neon</depend>
--- res/res_calendar_ews.c	(Asterisk 13.19)
+++ res/res_calendar_ews.c	(working copy)
@@ -23,2 +23,3 @@
 /*** MODULEINFO
+	<depend>res_calendar</depend>
 	<depend>neon29</depend>