diff --git a/lib/functions/fetch.js b/lib/functions/fetch.js
index e88461f..461bb2b 100644
--- a/lib/functions/fetch.js
+++ b/lib/functions/fetch.js
@@ -15,7 +15,8 @@ export default function fetch(path, data = {}) {
     .field(data)
     .attach(files)
     .end(response => {
-      if (response.statusType === 4 || response.statusType === 5) {
+      if (response.statusType === 4 || response.statusType === 5 ||
+          !response.body.ok) {
         reject(response);
       } else {
         resolve(response.body);