diff --git a/templates/etc/knot/knot.server.conf.erb b/templates/etc/knot/knot.server.conf.erb
index 416b8b9..a827095 100644
--- a/templates/etc/knot/knot.server.conf.erb
+++ b/templates/etc/knot/knot.server.conf.erb
@@ -61,7 +61,7 @@ remotes {
 <%- end -%>
 <%- if @slave_addresses -%>
   <%- @slave_addresses.each_pair do |iface, key| -%>
-  <%= key %><%- if iface.include? ':' then -%>-v6<%- else -%>-v4<%- end -%> {
+  <%= key %><%- if iface.include? ':' then -%>v6<%- else -%>v4<%- end -%> {
     address <%= iface %>;
     port 53;
     key <%= key %>;
@@ -72,7 +72,7 @@ remotes {
 groups {
   global-slaves {
 <%- @slave_addresses.each_with_index do |(iface, key), index| -%>
-    <%= key %><%- if iface.include? ':' then -%>-v6<%- else -%>-v4<%- end -%><%- if index + 1 < @slave_addresses.length %>,<%- end %>
+    <%= key %><%- if iface.include? ':' then -%>v6<%- else -%>v4<%- end -%><%- if index + 1 < @slave_addresses.length %>,<%- end %>
 <%- end -%>
     }
 }