diff --git a/src/calibre/gui2/dialogs/message_box.py b/src/calibre/gui2/dialogs/message_box.py
index c94db8b6b6..c9198c4aa2 100644
--- a/src/calibre/gui2/dialogs/message_box.py
+++ b/src/calibre/gui2/dialogs/message_box.py
@@ -148,7 +148,6 @@ class ViewLog(QDialog): # {{{
         QApplication.clipboard().setText(txt)
 # }}}
 
-
 _proceed_memory = []
 
 class ProceedNotification(MessageBox): # {{{
@@ -206,7 +205,6 @@ class ProceedNotification(MessageBox): # {{{
             _proceed_memory.remove(self)
 # }}}
 
-
 class ErrorNotification(MessageBox): # {{{
 
     def __init__(self, html_log, log_viewer_title, title, msg,