diff --git a/debian/changelog b/debian/changelog
index ba75e3386c836b165ff89590317b3a541e6e1b49..23edd19e42eead68509b362830f21a46836b484f 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+pd-unauthorized (0.1-4) UNRELEASED; urgency=medium
+
+  * debian/copyright: use spaces rather than tabs to start continuation
+    lines.
+  * Bump debhelper from old 11 to 12.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Sat, 01 Feb 2020 22:48:25 +0000
+
 pd-unauthorized (0.1-3) unstable; urgency=medium
 
   * Fixed spelling errors
diff --git a/debian/control b/debian/control
index 118d2c7d18381c2509e79e0c359e6c48a7a51511..8433faa252fa4ab6879a0b0e69c6ee36052178de 100644
--- a/debian/control
+++ b/debian/control
@@ -5,7 +5,7 @@ Maintainer: Debian Multimedia Maintainers <debian-multimedia@lists.debian.org>
 Uploaders:
  IOhannes m zmölnig (Debian/GNU) <umlaeute@debian.org>,
 Build-Depends:
- debhelper-compat (= 11),
+ debhelper-compat (= 12),
  puredata-dev | puredata (<< 0.43),
  libmp3lame-dev,
  libspeex-dev,
diff --git a/debian/copyright b/debian/copyright
index d97936a120ff51a476ff46489b3a9f05e645437f..38aeec109a509195bbce0c1168662afdd011fa17 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -14,7 +14,7 @@ License: GPL-2+
 Files: mpg123.h mpglib.h
 Copyright: 1995-2006 by the mpg123 project (Michael Hipp,
            Oliver Fromme, Thomas Orgis, Nicholas J Humfrey,
-		   and contributors)
+ 		   and contributors)
 License: LGPL-2.1+
 
 Files: grid.c pianoroll.c