diff --git a/lib/httpClient.js b/lib/httpClient.js
index f25c64c..409dd07 100644
--- a/lib/httpClient.js
+++ b/lib/httpClient.js
@@ -54,7 +54,7 @@ class HttpClient{
       }).catch(function(err){
         let res = err.response;
         // Reject API error HTTP status code
-        if(res.status >= 300){
+        if(typeof res !== 'undefined' && res.status >= 300){
           reject(
             new MidtransError(
               `Midtrans API is returning API error. HTTP status code: ${res.status}. API response: ${JSON.stringify(res.data)}`,
@@ -63,6 +63,15 @@ class HttpClient{
               res
             )
           )
+        } else if(typeof res === 'undefined'){
+          reject(
+            new MidtransError(
+              `Midtrans API request failed. HTTP status code not found, likely connection failure, with message: ${JSON.stringify(err.message)}`,
+              null,
+              null,
+              err
+            )
+          )
         }
         reject(err);
       })