diff --git a/grandchild-functions.php b/grandchild-functions.php
index d9f8e62..dbe7941 100644
--- a/grandchild-functions.php
+++ b/grandchild-functions.php
@@ -70,7 +70,16 @@ function gradschool_breadcrumbs(){
 
 function filter_search($query) {
     if ($query->is_search) {
-	$query->set('post_type', array('post', 'courses'));
+		// Get post types
+		$post_types = get_post_types(array('public' => true, 'exclude_from_search' => false), 'objects');
+		$searchable_types = array();
+		// Add available post types
+		if( $post_types ) {
+			foreach( $post_types as $type) {
+				$searchable_types[] = $type->name;
+			}
+		}
+		$query->set( 'post_type', $searchable_types );
     };
     return $query;
 };