diff --git a/CHANGELOG.md b/CHANGELOG.md
index 75ebb36..d880455 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [1.3.0] - 2023-11-06
 ### Added
 - Add Rails 7.1 support ([#49](https://github.com/komposable/dekorator/pull/49))
+### Fixes
+- Fix RSpec `decorator_spec.rb` template by using `File#exist?` instead `File#exists?` ([#51](https://github.com/komposable/dekorator/pull/51))
 ### Removed
 - Add Rails 7.0 on CI tests via Appraisals ([#47](https://github.com/komposable/dekorator/pull/47))
 - Drop Ruby 2.5 and 2.6 support ([#47](https://github.com/komposable/dekorator/pull/47))
diff --git a/lib/generators/rspec/templates/decorator_spec.rb b/lib/generators/rspec/templates/decorator_spec.rb
index 82a2a45..49bd3b1 100644
--- a/lib/generators/rspec/templates/decorator_spec.rb
+++ b/lib/generators/rspec/templates/decorator_spec.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require '<%= File.exists?("spec/rails_helper.rb") ? "rails_helper" : "spec_helper" %>'
+require '<%= File.exist?("spec/rails_helper.rb") ? "rails_helper" : "spec_helper" %>'
 
 # Example:
 #