diff --git a/DIRECTORY.md b/DIRECTORY.md
index 439c601a9..e7ce1ee1d 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -11,6 +11,7 @@
   * [Sudoku Solve](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/backtracking/sudoku_solve.cpp)
 
 ## Ciphers
+  * [Caesar Cipher](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/caesar_cipher.cpp)
   * [Hill Cipher](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/ciphers/hill_cipher.cpp)
 
 ## Data Structures