diff --git a/README b/README
index abb2557..b5813af 100644
--- a/README
+++ b/README
@@ -28,7 +28,7 @@ Basic usage
 
         from segment_tree import *
         array = [3, 1, 5, 3, 13, 7, 2, 7, 2]
-        tree = SegmentTree(array)
+        t = SegmentTree(array)
 
         t.query(1, 3, "sum") # 9
         t.update(0, 10) # [10, 1, 5, 3, 13, 7, 2, 7, 2]