diff --git a/iptables/rules.sls b/iptables/rules.sls
index 4e9e6e2..54fbbc4 100644
--- a/iptables/rules.sls
+++ b/iptables/rules.sls
@@ -48,6 +48,7 @@
 {%- endif %}
 
 {%- for service_name, service in pillar.items() %}
+{%- if service is mapping %}
 {%- if service.get('_support', {}).get('iptables', {}).get('enabled', False) %}
 
 {%- set grains_fragment_file = service_name+'/meta/iptables.yml' %}
@@ -60,6 +61,7 @@
 {%- endfor %}
 
 {%- endif %}
+{%- endif %}
 {%- endfor %}
 
 {%- for rule in chain.get('rules', []) %}