diff --git a/find_duplicate_files/find_duplicate_files.py b/find_duplicate_files/find_duplicate_files.py
index e1caa06..ecafbe0 100644
--- a/find_duplicate_files/find_duplicate_files.py
+++ b/find_duplicate_files/find_duplicate_files.py
@@ -48,7 +48,7 @@ class find_duplicate_files:
                         hash = hashlib.sha256()
                         with open(file.path, 'rb') as file_pointer:
                             file_content = file_pointer.read()
-                            hash.update(file_content.encode('utf-8'))
+                            hash.update(file_content)
                             files[hash.hexdigest()] = file.path
                     elif file.is_dir(follow_symlinks=False):
                         more_files = self.recursive_scandir(