diff --git a/lib/linkedin_client.js b/lib/linkedin_client.js
index f24261c..8c3848b 100644
--- a/lib/linkedin_client.js
+++ b/lib/linkedin_client.js
@@ -19,12 +19,12 @@ module.exports = function (key, secret, redirect) {
     , redirect
     , 'HMAC-SHA1'
     , null
-    , {'Accept': '*/*', 'Connection': 'close'}
+    , {'Accept': '*/*', 'Connection': 'close', 'x-li-format': 'json'}
     )
   }
     , paramAppender = "?"
     , hasParameters = /\/*\?/i
-    , _rest_base = 'http://api.linkedin.com/v1';
+    , _rest_base = 'https://api.linkedin.com/v1';
 
   memoize[key + secret + redirect] = CLIENT;
 
@@ -58,11 +58,10 @@ module.exports = function (key, secret, redirect) {
     }
 
     if (method.toUpperCase() === 'GET') {
-      params.format = 'json';
-      
-      if (path.match(hasParameters)) { 
+
+      if (path.match(hasParameters)) {
           paramAppender = "&";
-      } 
+      }
 
       return CLIENT.oauth.get(
         _rest_base + path + paramAppender + querystring.stringify(params)