diff --git a/src/calibre/utils/terminal.py b/src/calibre/utils/terminal.py
index f04615351d..75658148b2 100644
--- a/src/calibre/utils/terminal.py
+++ b/src/calibre/utils/terminal.py
@@ -146,7 +146,7 @@ class Detect(object):
                         # rather than failing, write an informative error
                         # message and the asciized version of the text.
                         print ('Non-ASCII text detected. You must set your Console\'s font to'
-                               ' Lucida Console or Consolas or some other TrueType font to see this text', file=self.stream, end='')
+                               ' Lucida Console or Consolas or some other TrueType font to see this text', file=self.stream, end=' -- ')
                         from calibre.utils.filenames import ascii_text
                         print (ascii_text(t + text), file=self.stream, end='')
                         continue