diff --git a/disqus/lib/wp-api.php b/disqus/lib/wp-api.php
index 73f6cf0..d37b4c3 100644
--- a/disqus/lib/wp-api.php
+++ b/disqus/lib/wp-api.php
@@ -90,7 +90,7 @@ function import_wordpress_comments(&$wxr, $timestamp, $eof=true) {
                 ),
             )
         );
-        if ($response->errors) {
+        if (is_wp_error($response)) {
             // hack
             $this->api->last_error = $response->errors;
             return -1;