diff --git a/roles/web_server/molecule/default/group_vars/parameters-mandatory.yml b/roles/web_server/molecule/default/group_vars/parameters-mandatory.yml
index d5bd3d2ddb92c5a44a1d46146c15a9531cbfaad5..04df24de1f46ec04335ff0bc2826abb4d9d64655 100644
--- a/roles/web_server/molecule/default/group_vars/parameters-mandatory.yml
+++ b/roles/web_server/molecule/default/group_vars/parameters-mandatory.yml
@@ -1,9 +1,8 @@
 ---
 
+default_https_tls_certificate: "{{ lookup('file', 'tests/data/x509/{{ inventory_hostname }}_https.cert.pem') }}"
+default_https_tls_key: "{{ lookup('file', 'tests/data/x509/{{ inventory_hostname }}_https.key.pem') }}"
+
 # common
 ca_certificates:
   testca: "{{ lookup('file', 'tests/data/x509/ca.cert.pem') }}"
-
-# Common parameters (general, not role).
-tls_certificate_dir: tests/data/x509/
-tls_private_key_dir: tests/data/x509/