diff --git a/.flake8 b/.flake8
index d7459204..3f5e06ff 100644
--- a/.flake8
+++ b/.flake8
@@ -4,4 +4,4 @@ ignore = E203, E266, W503, ANN002, ANN003, ANN101, ANN102, ANN401, N807, N818
 max-line-length = 79
 max-complexity = 18
 select = B,C,E,F,W,T4,B9,ANN,Q0,N8,VNE
-exclude = venv, tests
+exclude = venv, tests, .venv
diff --git a/app/main.py b/app/main.py
index 4ccbb02b..559c582f 100644
--- a/app/main.py
+++ b/app/main.py
@@ -14,4 +14,4 @@ def count_occurrences(phrase: str, letter: str) -> int:
     :param letter: letter to find occurrences of it
     :return: count occurrences of letter in phrase
     """
-    # write your code here
+    return sum(1 for char in phrase if char.lower() == letter.lower())