diff --git a/algorithms/hash-table.md b/algorithms/hash-table.md
index a92aeb83..f4490a01 100644
--- a/algorithms/hash-table.md
+++ b/algorithms/hash-table.md
@@ -8,7 +8,7 @@ Hash Table
 
 Interview Questions on Hashing Techniques
 
-Longest Consecutive Subsequence...
+1.Longest Consecutive Subsequence...
 
 Given an array of integers, find the length of the longest sub-sequence such that elements in the subsequence are consecutive integers, the consecutive numbers can be in any order.