diff --git a/tripleoclient/tests/test_utils.py b/tripleoclient/tests/test_utils.py
index 080b496f4..fb5533304 100644
--- a/tripleoclient/tests/test_utils.py
+++ b/tripleoclient/tests/test_utils.py
@@ -811,6 +811,12 @@ class TestReplaceLinks(TestCase):
         source = (
             'description: my template\n'
             'heat_template_version: "2014-10-16"\n'
+            'parameters:\n'
+            '  foo:\n'
+            '    default: ["bar"]\n'
+            '    type: json\n'
+            '  bar:\n'
+            '    default: []\n'
             'resources:\n'
             '  test_config:\n'
             '    properties:\n'
@@ -820,6 +826,12 @@ class TestReplaceLinks(TestCase):
         expected = (
             'description: my template\n'
             'heat_template_version: "2014-10-16"\n'
+            'parameters:\n'
+            '  foo:\n'
+            '    default: ["bar"]\n'
+            '    type: json\n'
+            '  bar:\n'
+            '    default: []\n'
             'resources:\n'
             '  test_config:\n'
             '    properties:\n'
diff --git a/tripleoclient/utils.py b/tripleoclient/utils.py
index 066e74ce4..9bcb2e29a 100644
--- a/tripleoclient/utils.py
+++ b/tripleoclient/utils.py
@@ -901,7 +901,7 @@ def replace_links_in_template(template_part, link_replacement):
         return {k: replaced_dict_value(k, v)
                 for k, v in six.iteritems(template_part)}
     elif isinstance(template_part, list):
-        return map(replaced_list_value, template_part)
+        return list(map(replaced_list_value, template_part))
     else:
         return template_part