diff --git a/lib/clients/public.js b/lib/clients/public.js
index 8e508d61..448ddd00 100644
--- a/lib/clients/public.js
+++ b/lib/clients/public.js
@@ -63,6 +63,7 @@ class PublicClient {
 
       if (err) {
         err.response = response;
+        err.data = data;
       } else if (response.statusCode > 299) {
         err = new Error(
           `HTTP ${response.statusCode} Error: ${data && data.message}`
@@ -72,6 +73,7 @@ class PublicClient {
       } else if (data === null) {
         err = new Error('Response could not be parsed as JSON');
         err.response = response;
+        err.data = data;
       }
 
       if (typeof callback === 'function') {