diff --git a/DIRECTORY.md b/DIRECTORY.md
index 9e163d414..7b0fb2b6b 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -142,7 +142,7 @@
   * [Happy Number](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/others/happy_number.cpp)
   * [Matrix Exponentiation](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/others/matrix_exponentiation.cpp)
   * [Measure Time Elapsed](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/others/measure_time_elapsed.cpp)
-  * [Palindromeofnumber](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/others/Palindromeofnumber.cpp)
+  * [Palindrome Of Number](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/others/palindrome_of_number.cpp)
   * [Paranthesis Matching](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/others/paranthesis_matching.cpp)
   * [Pascal Triangle](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/others/pascal_triangle.cpp)
   * [Primality Test](https://github.com/TheAlgorithms/C-Plus-Plus/blob/master/others/primality_test.cpp)