diff --git a/testsite/playbooks/ws.yml b/testsite/playbooks/ws.yml
index 9fb6c0899fbd2ecde9a40894f04872c37e482971..2b9a8ce0c121116dc06096554417d466764ad615 100644
--- a/testsite/playbooks/ws.yml
+++ b/testsite/playbooks/ws.yml
@@ -2,7 +2,7 @@
 
 - hosts: workstation
   remote_user: ansible
-  become: yes
+  become: true
   roles:
     - common
     - mail_forwarder