diff --git a/lib/rubocop/rspec/config_formatter.rb b/lib/rubocop/rspec/config_formatter.rb
index 11447917a..e6110e9bb 100644
--- a/lib/rubocop/rspec/config_formatter.rb
+++ b/lib/rubocop/rspec/config_formatter.rb
@@ -8,7 +8,7 @@ module RSpec
     class ConfigFormatter
       EXTENSION_ROOT_DEPARTMENT = %r{^(RSpec/)}.freeze
       SUBDEPARTMENTS = %(RSpec/Capybara RSpec/FactoryBot RSpec/Rails)
-      STYLE_GUIDE_BASE_URL = 'https://www.rubydoc.info/gems/rubocop-rspec/RuboCop/Cop/RSpec/'
+      COP_DOC_BASE_URL = 'https://www.rubydoc.info/gems/rubocop-rspec/RuboCop/Cop/RSpec/'
 
       def initialize(config, descriptions)
         @config       = config
@@ -27,9 +27,10 @@ def unified_config
         cops.each_with_object(config.dup) do |cop, unified|
           next if SUBDEPARTMENTS.include?(cop)
 
-          unified[cop] = config.fetch(cop)
-            .merge(descriptions.fetch(cop))
-            .merge('StyleGuide' => STYLE_GUIDE_BASE_URL + cop.sub('RSpec/', ''))
+          unified[cop].merge!(descriptions.fetch(cop))
+          unless unified[cop]['StyleGuide']
+            unified[cop].merge!('StyleGuide' => cop_doc_url(cop))
+          end
         end
       end
 
@@ -37,6 +38,10 @@ def cops
         (descriptions.keys | config.keys).grep(EXTENSION_ROOT_DEPARTMENT)
       end
 
+      def cop_doc_url(cop)
+        COP_DOC_BASE_URL + cop.sub('RSpec/', '')
+      end
+
       attr_reader :config, :descriptions
     end
   end
diff --git a/spec/rubocop/rspec/config_formatter_spec.rb b/spec/rubocop/rspec/config_formatter_spec.rb
index 8b7f163d9..a019c9c48 100644
--- a/spec/rubocop/rspec/config_formatter_spec.rb
+++ b/spec/rubocop/rspec/config_formatter_spec.rb
@@ -14,6 +14,10 @@
       },
       'RSpec/Bar' => {
         'Enabled'     => true
+      },
+      'RSpec/Baz' => {
+        'Enabled'     => true,
+        'StyleGuide'  => '#buzz'
       }
     }
   end
@@ -25,6 +29,9 @@
       },
       'RSpec/Bar' => {
         'Description' => 'Wow'
+      },
+      'RSpec/Baz' => {
+        'Description' => 'Woof'
       }
     }
   end
@@ -47,6 +54,11 @@
       |  Enabled: true
       |  Description: Wow
       |  StyleGuide: https://www.rubydoc.info/gems/rubocop-rspec/RuboCop/Cop/RSpec/Bar
+      |
+      |RSpec/Baz:
+      |  Enabled: true
+      |  StyleGuide: "#buzz"
+      |  Description: Woof
     YAML
   end
 end