diff --git a/testsite/group_vars/xmpp.yml b/testsite/group_vars/xmpp.yml
index 7e912d9421b3a225c0990b03f088fad4463be5be..33609220e1b32faeed1915c4f3452102bb815140 100644
--- a/testsite/group_vars/xmpp.yml
+++ b/testsite/group_vars/xmpp.yml
@@ -12,7 +12,7 @@ ldap_client_config:
     value: cn=admin,dc=example,dc=com
   - comment: Set the LDAP TLS truststore
     option: TLS_CACERT
-    value: /etc/ssl/certs/truststore.pem
+    value: /etc/ssl/certs/example_ca_chain.pem
 
 local_mail_aliases:
   root: "root john.doe@example.com"