diff --git a/testsite/group_vars/web.yml b/testsite/group_vars/web.yml
index 4b876c75288c86113d811c5e637e952b096ae9f9..fd828e2ff4c556adff580605d219469c5b6aa0ee 100644
--- a/testsite/group_vars/web.yml
+++ b/testsite/group_vars/web.yml
@@ -7,8 +7,8 @@ smtp_relay_host: mail.{{ testsite_domain }}
 
 smtp_relay_truststore: /etc/ssl/certs/ca.pem
 
-default_https_tls_key: "{{ inventory_dir }}/tls/web.{{ testsite_domain }}_https.key"
-default_https_tls_certificate: "{{ inventory_dir }}/tls/web.{{ testsite_domain }}_https.pem"
+default_https_tls_key: "{{ lookup('file', inventory_dir + '/tls/web.' + testsite_domain + '_https.key') }}"
+default_https_tls_certificate: "{{ lookup('file', inventory_dir + '/tls/web.' + testsite_domain + '_https.pem') }}"
 
 web_default_title: "Welcome to Example Inc."
 web_default_message: "You are attempting to access the web server using a wrong name or an IP address. Please check your URL."