diff --git a/DIRECTORY.md b/DIRECTORY.md
index 30aa2c7..0215db5 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -85,6 +85,7 @@
     * [Problem7](./Maths/ProjectEuler/Problem7.php)
     * [Problem8](./Maths/ProjectEuler/Problem8.php)
     * [Problem9](./Maths/ProjectEuler/Problem9.php)
+  * [Eratosthenessieve](./Maths/EratosthenesSieve.php)
 
 ## Searches
   * [Binarysearch](./Searches/BinarySearch.php)
@@ -155,6 +156,7 @@
     * [Eratosthenessievetest](./tests/Maths/EratosthenesSieveTest.php)
     * [Mathstest](./tests/Maths/MathsTest.php)
     * [Projecteulertest](./tests/Maths/ProjectEulerTest.php)
+    * [Eratosthenessievetest](./tests/Maths/EratosthenesSieveTest.php)
   * Searches
     * [Searchestest](./tests/Searches/SearchesTest.php)
   * Sorting