diff --git a/templates/datadog.conf.j2 b/templates/datadog.conf.j2
index 85dd700e..4870e5e3 100644
--- a/templates/datadog.conf.j2
+++ b/templates/datadog.conf.j2
@@ -18,7 +18,7 @@
 {% endif %}
 
 {% if datadog_config_ex is defined -%}
-{% for section, keyvals in datadog_config_ex.iteritems() %}
+{% for section, keyvals in datadog_config_ex.items() %}
 [{{ section }}]
 {{ keyvals | to_nice_yaml }}
 {% endfor %}