diff --git a/lib/request.js b/lib/request.js
index 4bd1987..54cffcd 100644
--- a/lib/request.js
+++ b/lib/request.js
@@ -70,11 +70,11 @@ const requestWithFetch = (options, url, payload, callback) => {
   }
   if (payload) headers['Content-Type'] = 'application/json'
   const reqOptions = typeof options.requestOptions === 'function' ? options.requestOptions(payload) : options.requestOptions
-  const fetchOptions = defaults({
+  const fetchOptions = defaults(omitFetchOptions ? {} : reqOptions, {
     method: payload ? 'POST' : 'GET',
     body: payload ? options.stringify(payload) : undefined,
     headers
-  }, omitFetchOptions ? {} : reqOptions)
+  })
   try {
     fetchIt(url, fetchOptions, callback)
   } catch (e) {