diff --git a/other/number_container_system.py b/other/number_container_system.py
index f547bc8a2..6c95dd0a3 100644
--- a/other/number_container_system.py
+++ b/other/number_container_system.py
@@ -1,6 +1,6 @@
 """
 A number container system that uses binary search to delete and insert values into
-arrays with O(n logn) write times and O(1) read times.
+arrays with O(log n) write times and O(1) read times.
 
 This container system holds integers at indexes.