diff --git a/templates/server/location_header.erb b/templates/server/location_header.erb
index 9e1e5ee1a..25c16fc36 100644
--- a/templates/server/location_header.erb
+++ b/templates/server/location_header.erb
@@ -78,12 +78,8 @@
     <%- end -%>
 <% end -%>
 <% if @limit_zone -%>
-  <%- if @limit_zone.is_a?(Array) then -%>
-    <%- for lz in @limit_zone -%>
+  <%- Array(@limit_zone).each do |lz| -%>
     limit_req zone=<%= lz %>;
-    <%- end -%>
-  <%- else -%>
-    limit_req zone=<%= @limit_zone %>;
   <%- end -%>
 <% end -%>
 <% if @reset_timedout_connection -%>