diff --git a/src/calibre/customize/builtins.py b/src/calibre/customize/builtins.py
index 1495417964..c321bb62ae 100644
--- a/src/calibre/customize/builtins.py
+++ b/src/calibre/customize/builtins.py
@@ -1476,6 +1476,7 @@ class StoreKoobeStore(StoreBase):
     drm_free_only = True
     headquarters = 'PL'
     formats = ['EPUB', 'MOBI', 'PDF']
+    affiliate = True
 
 class StoreLegimiStore(StoreBase):
     name = 'Legimi'
diff --git a/src/calibre/gui2/store/stores/koobe_plugin.py b/src/calibre/gui2/store/stores/koobe_plugin.py
index f717e73c75..32d564e008 100644
--- a/src/calibre/gui2/store/stores/koobe_plugin.py
+++ b/src/calibre/gui2/store/stores/koobe_plugin.py
@@ -1,13 +1,14 @@
 # -*- coding: utf-8 -*-
 
 from __future__ import (division, absolute_import, print_function)
-store_version = 2  # Needed for dynamic plugin loading
+store_version = 3  # Needed for dynamic plugin loading
 
 __license__ = 'GPL 3'
 __copyright__ = '2013, Tomasz Długosz <tomek3d@gmail.com>'
 __docformat__ = 'restructuredtext en'
 
 import urllib
+from base64 import b64encode
 from contextlib import closing
 
 from lxml import html
@@ -24,21 +25,20 @@ from calibre.gui2.store.web_store_dialog import WebStoreDialog
 class KoobeStore(BasicStoreConfig, StorePlugin):
 
     def open(self, parent=None, detail_item=None, external=False):
-        #aff_root = 'https://www.a4b-tracking.com/pl/stat-click-text-link/15/58/'
+        aff_root = 'https://www.a4b-tracking.com/pl/stat-click-text-link/15/58/'
+
         url = 'http://www.koobe.pl/'
 
-        #aff_url = aff_root + str(b64encode(url))
+        aff_url = aff_root + str(b64encode(url))
 
         detail_url = None
         if detail_item:
-            detail_url = detail_item #aff_root + str(b64encode(detail_item))
+            detail_url = aff_root + str(b64encode(detail_item))
 
         if external or self.config.get('open_external', False):
-            #open_url(QUrl(url_slash_cleaner(detail_url if detail_url else aff_url)))
-            open_url(QUrl(url_slash_cleaner(detail_url if detail_url else url)))
+            open_url(QUrl(url_slash_cleaner(detail_url if detail_url else aff_url)))
         else:
-            #d = WebStoreDialog(self.gui, url, parent, detail_url if detail_url else aff_url)
-            d = WebStoreDialog(self.gui, url, parent, detail_url if detail_url else url)
+            d = WebStoreDialog(self.gui, url, parent, detail_url if detail_url else aff_url)
             d.setWindowTitle(self.name)
             d.set_tags(self.config.get('tags', ''))
             d.exec_()