diff --git a/contrib/ds-algorithms/index.md b/contrib/ds-algorithms/index.md
index d3c3c27..e3fc378 100644
--- a/contrib/ds-algorithms/index.md
+++ b/contrib/ds-algorithms/index.md
@@ -10,4 +10,4 @@
 - [Greedy Algorithms](greedy-algorithms.md)
 - [Dynamic Programming](dynamic-programming.md)
 - [Linked list](linked-list.md)
-- [Sliding Window Technique](Sliding_Window.md)
+- [Sliding Window Technique](sliding-window.md)