diff --git a/includes/class-sp-calendar.php b/includes/class-sp-calendar.php
index 26c3ae9f..cb49e953 100644
--- a/includes/class-sp-calendar.php
+++ b/includes/class-sp-calendar.php
@@ -45,6 +45,9 @@ class SP_Calendar extends SP_Secondary_Post {
 
 	/** @var int Number of events. */
 	public $number;
+	
+	/** @var int The event ID. */
+	public $event_id;
 
 	/**
 	 * __construct function.
@@ -277,6 +280,10 @@ class SP_Calendar extends SP_Secondary_Post {
 					),
 				);
 			}
+		
+			if ( $this->event_id) {
+				$args['p'] = $this->event_id;
+			}
 
 			if ( 'auto' === $this->date && 'any' === $this->status ) {
 				$args['post_status'] = 'publish';