diff --git a/roles/xmpp_server/molecule/default/tests/test_mandatory.py b/roles/xmpp_server/molecule/default/tests/test_mandatory.py
index 6557d53c49a613cb460a05418502dcac1e3b0563..e498261e66fbeef0fa8cb26ca4ff0cff6e43d78d 100644
--- a/roles/xmpp_server/molecule/default/tests/test_mandatory.py
+++ b/roles/xmpp_server/molecule/default/tests/test_mandatory.py
@@ -81,3 +81,24 @@ def test_correct_prosody_package_installed(host):
     """
 
     assert host.package('prosody-0.10').is_installed
+
+
+def test_xmpp_server_uses_correct_dh_parameters(host):
+    """
+    Tests if the HTTP server uses the generated Diffie-Helman parameter.
+    """
+
+    fqdn = host.run('hostname -f').stdout.strip()
+
+    with host.sudo():
+        expected_dhparam = host.file('/etc/ssl/private/%s_xmpp.dh.pem' % fqdn).content_string.rstrip()
+
+    connection = host.run("gnutls-cli --no-ca-verification --starttls-proto=xmpp --port 5222 "
+                          "--priority 'NONE:+VERS-TLS1.2:+CTYPE-X509:+COMP-NULL:+SIGN-RSA-SHA384:+DHE-RSA:+SHA384:+AEAD:+AES-256-GCM' --verbose domain1")
+
+    output = connection.stdout
+    begin_marker = "-----BEGIN DH PARAMETERS-----"
+    end_marker = "-----END DH PARAMETERS-----"
+    used_dhparam = output[output.find(begin_marker):output.find(end_marker) + len(end_marker)]
+
+    assert used_dhparam == expected_dhparam