diff --git a/geocoder/__init__.py b/geocoder/__init__.py
index cef6d70d..6731a6a9 100755
--- a/geocoder/__init__.py
+++ b/geocoder/__init__.py
@@ -28,7 +28,7 @@
 __title__ = 'geocoder'
 __author__ = 'Denis Carriere'
 __author_email__ = 'carriere.denis@gmail.com'
-__version__ = '1.38.1'
+__version__ = '1.38.2'
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) 2013-2016 Denis Carriere'
 
diff --git a/geocoder/yandex.py b/geocoder/yandex.py
index c55e15fd..1e0f0359 100644
--- a/geocoder/yandex.py
+++ b/geocoder/yandex.py
@@ -150,9 +150,10 @@ def _build_params(self, location, provider_key, **kwargs):
         return {
             'geocode': location,
             'lang': kwargs.get('lang', 'en-US'),
-            'kind': kwargs.get('kind', ''),
+            'kind': kwargs.get('kind', None),
             'format': 'json',
             'results': kwargs.get('maxRows', 1),
+            'apikey': provider_key
         }
 
     def _adapt_results(self, json_response):
diff --git a/geocoder/yandex_reverse.py b/geocoder/yandex_reverse.py
index ad7cd0aa..b9535bfe 100644
--- a/geocoder/yandex_reverse.py
+++ b/geocoder/yandex_reverse.py
@@ -56,9 +56,10 @@ def _build_params(self, location, provider_key, **kwargs):
         return {
             'geocode': self.location,
             'lang': kwargs.get('lang', 'en-US'),
-            'kind': kwargs.get('kind', ''),
+            'kind': kwargs.get('kind', None),
             'format': 'json',
             'results': kwargs.get('maxRows', 1),
+            'apikey': provider_key
         }