diff --git a/buggy.py b/buggy.py
--- a/buggy.py
+++ b/buggy.py
@@ -2,7 +2,7 @@
 phrase = input().lower()
 operation = int(input())
 
-alphabet = "abcdefghijklmnopqrstuvwsyz"
+alphabet = "abcdefghijklmnopqrstuvwxyz"
 
 for i in range(operation):
     original, become = input().split()
