diff --git a/src/handler.py b/src/handler.py
index 075d7d7..8a64f13 100644
--- a/src/handler.py
+++ b/src/handler.py
@@ -15,7 +15,7 @@ def handle(event, context):
     while '' in matrix_split:
         matrix_split.remove('')
 
-    for i in range(len(matrix_split)):
+    for i in enumerate(matrix_split):
         char = matrix_split[i]
         if char == '&':
             matrix_split[i] = ' '