diff --git a/includes/core/class-member-directory.php b/includes/core/class-member-directory.php
index 3aceb388..e2645394 100644
--- a/includes/core/class-member-directory.php
+++ b/includes/core/class-member-directory.php
@@ -1660,6 +1660,7 @@ if ( ! class_exists( 'um\core\Member_Directory' ) ) {
 										'value'     => $value,
 										'compare'   => 'BETWEEN',
 										'inclusive' => true,
+										'type'		=> 'NUMERIC',
 									);
 
 									break;