diff --git a/articles/0064/_posts/2024-06-11-0064-ChoosingRubyToTeachProgramming.md b/articles/0064/_posts/2024-06-11-0064-ChoosingRubyToTeachProgramming.md
index 3fed5288..48799792 100644
--- a/articles/0064/_posts/2024-06-11-0064-ChoosingRubyToTeachProgramming.md
+++ b/articles/0064/_posts/2024-06-11-0064-ChoosingRubyToTeachProgramming.md
@@ -75,7 +75,7 @@ class Example:
   def _protected_method:
     pass
    
-  # protected 場合は、アンダースコアが 2 つあります
+  # private 場合は、アンダースコアが 2 つあります
   def __private_method:
     pass
 ```
@@ -254,4 +254,4 @@ Thank you for reading to the end.
 - 6th slide: [https://www.slideshare.net/slideshow/06-ruby-array-hash-ruby-core-teaching/270326037](https://www.slideshare.net/slideshow/06-ruby-array-hash-ruby-core-teaching/270326037)
 - 7th slide: [https://www.slideshare.net/slideshow/07-ruby-string-slides-ruby-core-teaching/270326040](https://www.slideshare.net/slideshow/07-ruby-string-slides-ruby-core-teaching/270326040)
 - 8th slide: [https://www.slideshare.net/slideshow/08-ruby-enumerable-ruby-core-teaching/270326032](https://www.slideshare.net/slideshow/08-ruby-enumerable-ruby-core-teaching/270326032)
-- 9th slide: [https://www.slideshare.net/slideshow/09-ruby-object-oriented-programming-ruby-core-teaching/270326041](https://www.slideshare.net/slideshow/09-ruby-object-oriented-programming-ruby-core-teaching/270326041)
\ No newline at end of file
+- 9th slide: [https://www.slideshare.net/slideshow/09-ruby-object-oriented-programming-ruby-core-teaching/270326041](https://www.slideshare.net/slideshow/09-ruby-object-oriented-programming-ruby-core-teaching/270326041)