diff --git a/debian/changelog b/debian/changelog
index f97b3f7f813f649cb07b501f423ec92035fe5b95..b5bd8b580b373904fa668e017d87a75017abfe05 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -7,6 +7,9 @@ python-testtools (2.3.0-7) UNRELEASED; urgency=medium
   [ Ondřej Nový ]
   * Run wrap-and-sort -bastk.
 
+  [ Debian Janitor ]
+  * debian/copyright: Use spaces rather than tabs in continuation lines.
+
  -- Debian Janitor <janitor@jelmer.uk>  Sat, 05 Oct 2019 20:04:45 +0000
 
 python-testtools (2.3.0-6) unstable; urgency=medium
diff --git a/debian/copyright b/debian/copyright
index 095e2bed3faaea8d9d0391dbfb260525ff4d5ccf..b1d90e70e35aafa5cc0a88f002ca3a0b79143944 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -5,30 +5,30 @@ Source: https://github.com/testing-cabal/testtools
 
 Files: *
 Copyright: (c) Canonical Ltd
-	(c) Twisted Matrix Labs
-	(c) 2008-2013, Jonathan M. Lange <jml@mumak.net>
-	(c) Robert Collins <robertc@robertcollins.net>
-	(c) Andrew Bennetts
-	(c) Benjamin Peterson
-	(c) Jamu Kakar
-	(c) James Westby
-	(c) Martin [gz]
-	(c) Michael Hudson-Doyle
-	(c) Aaron Bentley
-	(c) Christian Kampka
-	(c) Gavin Panella
-	(c) Martin Pool
+ (c) Twisted Matrix Labs
+ (c) 2008-2013, Jonathan M. Lange <jml@mumak.net>
+ (c) Robert Collins <robertc@robertcollins.net>
+ (c) Andrew Bennetts
+ (c) Benjamin Peterson
+ (c) Jamu Kakar
+ (c) James Westby
+ (c) Martin [gz]
+ (c) Michael Hudson-Doyle
+ (c) Aaron Bentley
+ (c) Christian Kampka
+ (c) Gavin Panella
+ (c) Martin Pool
 License: MIT
 
 Files: testtools/run.py
 Copyright: (c) 1999-2003 Steve Purcell
-	(c) 2003-2010 Python Software Foundation
+ (c) 2003-2010 Python Software Foundation
 License: Python-license
 
 Files: debian/*
 Copyright: (c) 2009, Elliot Murphy <elliot.murphy@gmail.com>
-	(c) 2009-2011, Robert Collins <robertc@robertcollins.net>
-	(c) 2012, Jelmer Vernooij <jelmer@debian.org>
+ (c) 2009-2011, Robert Collins <robertc@robertcollins.net>
+ (c) 2012, Jelmer Vernooij <jelmer@debian.org>
         (c) 20013-2017, Thomas Goirand <zigo@debian.org>
 License: MIT