diff --git a/u6/matching_brackets.py b/u6/matching_brackets.py
index 8237078..d303211 100644
--- a/u6/matching_brackets.py
+++ b/u6/matching_brackets.py
@@ -5,7 +5,7 @@ def is_paired(input_string):
         "}":"{",
         "]":"[",
     }
-    for chat in input_string:
+    for char in input_string:
         if char in "({[":
             stack.append(char)
         elif char in ")}]":