diff --git a/DIRECTORY.md b/DIRECTORY.md
index 694c8cf64..98338a1fe 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -210,6 +210,7 @@
 ## ProjectEuler
   * [Problem01](https://github.com/TheAlgorithms/Java/blob/master/ProjectEuler/Problem01.java)
   * [Problem02](https://github.com/TheAlgorithms/Java/blob/master/ProjectEuler/Problem02.java)
+  * [Problem03](https://github.com/TheAlgorithms/Java/blob/master/ProjectEuler/Problem03.java)
   * [Problem04](https://github.com/TheAlgorithms/Java/blob/master/ProjectEuler/Problem04.java)
   * [Problem06](https://github.com/TheAlgorithms/Java/blob/master/ProjectEuler/Problem06.java)
   * [Problem07](https://github.com/TheAlgorithms/Java/blob/master/ProjectEuler/Problem07.java)