diff --git a/lib/defaults/index.js b/lib/defaults/index.js
index a883bfe..774893a 100644
--- a/lib/defaults/index.js
+++ b/lib/defaults/index.js
@@ -51,9 +51,6 @@ const defaults = {
     const isFormData = utils.isFormData(data);
 
     if (isFormData) {
-      if (!hasJSONContentType) {
-        return data;
-      }
       return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;
     }