diff --git a/lib/helpers/AxiosURLSearchParams.js b/lib/helpers/AxiosURLSearchParams.js
index da63392e..57cf16d1 100644
--- a/lib/helpers/AxiosURLSearchParams.js
+++ b/lib/helpers/AxiosURLSearchParams.js
@@ -18,9 +18,8 @@ function encode(str) {
     ')': '%29',
     '~': '%7E',
     '%20': '+',
-    '%00': '\x00',
   };
-  return encodeURIComponent(str).replace(/[!'()~]|%20|%00/g, function replacer(match) {
+  return encodeURIComponent(str).replace(/[!'()~]|%20/g, function replacer(match) {
     return charMap[match];
   });
 }