diff --git a/build.py b/build.py
index a69200d..aecb314 100644
--- a/build.py
+++ b/build.py
@@ -68,9 +68,9 @@
 
 
 def write_file(zip, path, date):
-    file = path.open('rb')
+    file = path.open("rb")
     data = file.read()
-    new_data = data.replace(b'\r\n', b'\n')
+    new_data = data.replace(b"\r\n", b"\n")
     file.close()
     name = path.as_posix()
     write_zip_entry(zip, name, new_data, date)