diff --git a/res/res_calendar_caldav.c b/res/res_calendar_caldav.c
index ec9f0ac05c..425a1e3d83 100644
--- a/res/res_calendar_caldav.c
+++ b/res/res_calendar_caldav.c
@@ -21,6 +21,7 @@
  */
 
 /*** MODULEINFO
+	<depend>res_calendar</depend>
 	<depend>neon</depend>
 	<depend>ical</depend>
 	<depend>libxml2</depend>
@@ -752,4 +753,5 @@ AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Asterisk CalDAV Calen
 	.load = load_module,
 	.unload = unload_module,
 	.load_pri = AST_MODPRI_DEVSTATE_PLUGIN,
+	.requires = "res_calendar",
 );
diff --git a/res/res_calendar_ews.c b/res/res_calendar_ews.c
index cf0ddc2406..c12fb012e0 100644
--- a/res/res_calendar_ews.c
+++ b/res/res_calendar_ews.c
@@ -21,6 +21,7 @@
  */
 
 /*** MODULEINFO
+	<depend>res_calendar</depend>
 	<depend>neon29</depend>
 	<support_level>extended</support_level>
 ***/
@@ -940,4 +941,5 @@ AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Asterisk MS Exchange
 	.load = load_module,
 	.unload = unload_module,
 	.load_pri = AST_MODPRI_DEVSTATE_PLUGIN,
+	.requires = "res_calendar",
 );
diff --git a/res/res_calendar_exchange.c b/res/res_calendar_exchange.c
index 99dc5e6eca..21c1c1a84f 100644
--- a/res/res_calendar_exchange.c
+++ b/res/res_calendar_exchange.c
@@ -21,6 +21,7 @@
  */
 
 /*** MODULEINFO
+	<depend>res_calendar</depend>
 	<depend>neon</depend>
 	<depend>ical</depend>
 	<depend>iksemel</depend>
@@ -743,4 +744,5 @@ AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Asterisk MS Exchange
 	.load = load_module,
 	.unload = unload_module,
 	.load_pri = AST_MODPRI_DEVSTATE_PLUGIN,
+	.requires = "res_calendar",
 );
diff --git a/res/res_calendar_icalendar.c b/res/res_calendar_icalendar.c
index 9efecdb623..4f78f9a3a7 100644
--- a/res/res_calendar_icalendar.c
+++ b/res/res_calendar_icalendar.c
@@ -21,6 +21,7 @@
  */
 
 /*** MODULEINFO
+	<depend>res_calendar</depend>
 	<depend>neon</depend>
 	<depend>ical</depend>
 	<support_level>extended</support_level>
@@ -541,4 +542,5 @@ AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Asterisk iCalendar .i
 	.load = load_module,
 	.unload = unload_module,
 	.load_pri = AST_MODPRI_DEVSTATE_PLUGIN,
+	.requires = "res_calendar",
 );