diff --git a/roles/mail_forwarder/molecule/default/tests/test_smtp_relay_host_port.py b/roles/mail_forwarder/molecule/default/tests/test_smtp_relay_host_port.py
index 5a132758f7bdbc0d4356350573440fed5e20dd6a..7760405f5a3f2c33e4954c5abcccfeac8a28ebf0 100644
--- a/roles/mail_forwarder/molecule/default/tests/test_smtp_relay_host_port.py
+++ b/roles/mail_forwarder/molecule/default/tests/test_smtp_relay_host_port.py
@@ -17,7 +17,7 @@ def test_postfix_main_cf_file_content(host):
 
     hostname = host.run('hostname').stdout.strip()
     config = host.file('/etc/postfix/main.cf')
-    config_lines = config.content.split("\n")
+    config_lines = config.content_string.split("\n")
 
     assert "myhostname = %s" % hostname in config_lines
     assert "mydestination = %s, %s, localhost.localdomain, localhost" % (hostname, hostname) in config_lines
@@ -45,4 +45,4 @@ def test_relay_mail_sending(host):
         # Pattern used to verify the mail was sent over relay on default port.
         pattern = r"%s: to=<root@domain1>, relay=mail-server\[[^]]*\]:25.*status=sent" % message_id
 
-        assert re.search(pattern, mail_log.content) is not None
+        assert re.search(pattern, mail_log.content_string) is not None