diff --git a/lib/nntp/tiny/buffer.py b/lib/nntp/tiny/buffer.py
index 342316c..8814c6b 100644
--- a/lib/nntp/tiny/buffer.py
+++ b/lib/nntp/tiny/buffer.py
@@ -20,7 +20,6 @@ class LineBuffer():
     def _shift(self):
         count = self.offset_i - self.offset_o
 
-
         self.buf[0:count] = self.buf[self.offset_o:self.offset_i]
 
         self.offset_i = count
@@ -41,7 +40,6 @@ class LineBuffer():
 
         readlen = len(data)
 
-
         self.buf[self.offset_i:self.size] = data
 
         self.offset_i += readlen
@@ -59,16 +57,15 @@ class LineBuffer():
     def readline(self, sock: socket.socket) -> str:
         if self.done:
             return ''
-        
+
         while True:
             index = self.buf.find(b'\n', self.offset_o, self.offset_i)
 
-
             if index < 0:
                 if self._is_full():
                     if self.offset_o == 0:
                         raise BufferOverflow()
-                    
+
                     self._shift()
                 elif self.eof:
                     self.done = True