diff --git a/kyu_6/character_frequency/character_frequency.py b/kyu_6/character_frequency/character_frequency.py
index 3a758b21793..443bc4f6680 100644
--- a/kyu_6/character_frequency/character_frequency.py
+++ b/kyu_6/character_frequency/character_frequency.py
@@ -15,7 +15,7 @@ def letter_frequency(text: str) -> list:
     """
     results: list = []
     chars: dict = {}
-    text: str = text.lower()
+    text = text.lower()
 
     for c in text:
         if c.isalpha() and c not in chars: