diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 30b8283..aac42e3 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -19,14 +19,6 @@ Lint/SendWithMixinArgument:
   Exclude:
     - 'lib/commentable_methods.rb'
 
-# Offense count: 2
-# This cop supports safe autocorrection (--autocorrect).
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: strict, consistent
-Lint/SymbolConversion:
-  Exclude:
-    - 'lib/commentable_methods.rb'
-
 # Offense count: 5
 # Configuration parameters: AllowedMethods, AllowedPatterns, CountRepeatedAttributes.
 Metrics/AbcSize:
diff --git a/lib/commentable_methods.rb b/lib/commentable_methods.rb
index 25cbff7..c4c7f68 100644
--- a/lib/commentable_methods.rb
+++ b/lib/commentable_methods.rb
@@ -12,9 +12,9 @@ module HelperMethods
         private
 
         def define_role_based_inflection(role)
-          return if method_defined?("#{role}_comments".to_sym)
+          return if method_defined?(:"#{role}_comments")
 
-          has_many "#{role}_comments".to_sym,
+          has_many :"#{role}_comments",
                    -> { where(role: role.to_s) },
                    **has_many_options(role)
         end