diff --git a/algorithms/data-structures/merge-sort-tree.tex b/algorithms/data-structures/merge-sort-tree.tex
index fa21df0..858f2fc 100644
--- a/algorithms/data-structures/merge-sort-tree.tex
+++ b/algorithms/data-structures/merge-sort-tree.tex
@@ -11,4 +11,4 @@ \subsection{Merge Sort Tree}
 
 Build: $O(N \log N)$
 
-inrange: $O(\log N)$
+inrange: $O(\log^2 N)$