diff --git a/smartgears/dataminer_app/tasks/install-gcube-key.yml b/smartgears/dataminer_app/tasks/install-gcube-key.yml
index ab85986e..83bad0f3 100644
--- a/smartgears/dataminer_app/tasks/install-gcube-key.yml
+++ b/smartgears/dataminer_app/tasks/install-gcube-key.yml
@@ -16,7 +16,6 @@
     - '{{ gcube_dev_key_1 }}'
     - '{{ gcube_dev_key_2 }}'
     - '{{ gcube_dev_key_3 }}'
-    - '{{ gcube_dev_key_4 }}'
   notify: Restart smartgears
   when: install_gcube_dev_key
   tags: [ 'dataminer', 'gcube_key', 'wps' ]