diff --git a/calendar/setup/setup.inc.php b/calendar/setup/setup.inc.php
index c1202576f9..96d2a7684d 100755
--- a/calendar/setup/setup.inc.php
+++ b/calendar/setup/setup.inc.php
@@ -52,6 +52,16 @@
 		 'appname' => 'etemplate',
 		 'versions' => Array('1.0.0','1.0.1','1.2','1.3')
 	);
+	
+	// installation checks for calendar
+	$setup_info['calendar']['check_install'] = array(
+		// check if PEAR is availible
+		'' => array(
+			'func' => 'pear_check',
+			'from' => 'Calendar (iCal import+export)',
+		),
+	);	
+