diff --git a/.rubocop.yml b/.rubocop.yml
index d038f9299..23dd038d8 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -137,6 +137,3 @@ Style/TrailingCommaInHashLiteral:
 #Allow both ['a', 'b'], %w[a b] and %w(a b) style arrays
 Style/WordArray:
   Enabled: false
-
-Style/RedundantCondition:
-  Enabled: false
diff --git a/modules/dns/dns_api.rb b/modules/dns/dns_api.rb
index 426cfbe34..c873ef056 100644
--- a/modules/dns/dns_api.rb
+++ b/modules/dns/dns_api.rb
@@ -47,11 +47,8 @@ class Api < ::Sinatra::Base
 
     delete '/:value/?:type?' do
       name = params[:value]
-      if params[:type]
-        type = params[:type]
-      else
-        type = (name =~ /\.(in-addr|ip6)\.arpa$/) ? "PTR" : "A"
-      end
+      type = params[:type]
+      type ||= name.end_with?('.in-addr.arpa', '.ip6.arpa') ? 'PTR' : 'A'
 
       begin
         validate_dns_name!(name, type)