diff --git a/templates/config.j2 b/templates/config.j2
index 85fe44d..e549ff2 100644
--- a/templates/config.j2
+++ b/templates/config.j2
@@ -15,14 +15,14 @@
 server:
 {% if nsd_server_config is defined %}
   # Common configuration
-{% for key, value in nsd_server_config.iteritems() -%}
+{% for key, value in nsd_server_config.items() -%}
 {{ expand_list(key, value) }}
 {%- endfor %}
 {% endif %}
 
 {% if nsd_local_server_config is defined %}
   # Local configuration
-{% for key, value in nsd_local_server_config.iteritems() -%}
+{% for key, value in nsd_local_server_config.items() -%}
 {{ expand_list(key, value) }}
 {%- endfor %}
 {% endif %}