diff --git a/debian/changelog b/debian/changelog
index 7083583..e783022 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,8 +1,12 @@
 xsunpinyin (2.0.3-7) UNRELEASED; urgency=medium
 
+  [ Boyuan Yang ]
   * Team upload.
   * Remove Liang Guo from the uploaders list. (Closes: #961609)
     Thanks for all your work!
+
+  [ Debian Janitor ]
+  * debian/copyright: use spaces rather than tabs to start continuation lines.
 
  -- Boyuan Yang <byang@debian.org>  Wed, 27 May 2020 10:19:23 -0400
 
diff --git a/debian/copyright b/debian/copyright
index 8013b18..8b0d973 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -453,7 +453,7 @@
 
 Files: wrapper/xim/IMdkit/FrameMgr.c wrapper/xim/IMdkit/FrameMgr.h
 Copyright: Copyright 1993, 1994 by Digital Equipment Corporation,
-	   Maynard, Massachusetts,
+           Maynard, Massachusetts,
 License:   MIT-mit
  Permission to use, copy, modify, and distribute this software and its
  documentation for any purpose and without fee is hereby granted,
@@ -474,8 +474,8 @@
 Files: wrapper/xim/IMdkit/i18nIMProto.c
 Copyright: Copyright 1993, 1994 by Digital Equipment Corporation,
            Maynard, Massachusetts,
-	   Copyright 1993, 1994 by Hewlett-Packard Company
-	   Copyright 1994, 1995 by Sun Microsystems, Inc.
+           Copyright 1993, 1994 by Hewlett-Packard Company
+           Copyright 1994, 1995 by Sun Microsystems, Inc.
 License:   MIT-hp
  Permission to use, copy, modify, and distribute this software and its
  documentation for any purpose and without fee is hereby granted,
@@ -516,19 +516,19 @@
  PERFORMANCE OF THIS SOFTWARE.
 
 Files: wrapper/xim/IMdkit/i18nAttr.c
-	wrapper/xim/IMdkit/i18nClbk.c
-	wrapper/xim/IMdkit/i18nIc.c
-	wrapper/xim/IMdkit/i18nMethod.c
-	wrapper/xim/IMdkit/i18nPtHdr.c
-	wrapper/xim/IMdkit/i18nUtil.c
-	wrapper/xim/IMdkit/i18nX.c
-	wrapper/xim/IMdkit/IMConn.c
-	wrapper/xim/IMdkit/IMdkit.h
-	wrapper/xim/IMdkit/IMMethod.c
-	wrapper/xim/IMdkit/IMValues.c
-	wrapper/xim/IMdkit/Xi18n.h
-	wrapper/xim/IMdkit/Xi18nX.h
-	wrapper/xim/IMdkit/XimFunc.h
+ 	wrapper/xim/IMdkit/i18nClbk.c
+ 	wrapper/xim/IMdkit/i18nIc.c
+ 	wrapper/xim/IMdkit/i18nMethod.c
+ 	wrapper/xim/IMdkit/i18nPtHdr.c
+ 	wrapper/xim/IMdkit/i18nUtil.c
+ 	wrapper/xim/IMdkit/i18nX.c
+ 	wrapper/xim/IMdkit/IMConn.c
+ 	wrapper/xim/IMdkit/IMdkit.h
+ 	wrapper/xim/IMdkit/IMMethod.c
+ 	wrapper/xim/IMdkit/IMValues.c
+ 	wrapper/xim/IMdkit/Xi18n.h
+ 	wrapper/xim/IMdkit/Xi18nX.h
+ 	wrapper/xim/IMdkit/XimFunc.h
 Copyright: Copyright 1994, 1995 by Sun Microsystems, Inc.
          Copyright 1993, 1994 by Hewlett-Packard Company
 License:   MIT-sun-hp