diff --git a/src/wp-admin/includes/class-wp-site-health.php b/src/wp-admin/includes/class-wp-site-health.php
index d7432eb371..ebaeb18989 100644
--- a/src/wp-admin/includes/class-wp-site-health.php
+++ b/src/wp-admin/includes/class-wp-site-health.php
@@ -1577,7 +1577,7 @@ class WP_Site_Health {
 		$blocked = false;
 		$hosts   = array();
 
-		if ( defined( 'WP_HTTP_BLOCK_EXTERNAL' ) ) {
+		if ( defined( 'WP_HTTP_BLOCK_EXTERNAL' ) && WP_HTTP_BLOCK_EXTERNAL ) {
 			$blocked = true;
 		}