diff --git a/ruby/basic_ruby_projects/project_caesar_cipher.md b/ruby/basic_ruby_projects/project_caesar_cipher.md
index 9f543abcc8f..557ae29a8b8 100644
--- a/ruby/basic_ruby_projects/project_caesar_cipher.md
+++ b/ruby/basic_ruby_projects/project_caesar_cipher.md
@@ -18,7 +18,7 @@ Harvard's CS50 class has a [video about the Caesar cipher](https://www.youtube.c
 
 <div class="lesson-content__panel" markdown="1">
 
-  Implement a caesar cipher that takes in a string and the shift factor and then outputs the modified string:
+  Implement a Caesar cipher that takes in a string and the shift factor and then outputs the modified string using a right shift:
 
 ```ruby
   > caesar_cipher("What a string!", 5)
@@ -30,5 +30,6 @@ Harvard's CS50 class has a [video about the Caesar cipher](https://www.youtube.c
 - You will need to remember how to convert a string into a number.
 - Don't forget to wrap from `z` to `a`.
 - Don't forget to keep the same case.
+- The Wikipedia quote discusses a Caesar cipher using a left shift.
 
 </div>