diff --git a/doc/base64tool.1 b/doc/base64tool.1
index 39a6aabb8..4617993e8 100644
--- a/doc/base64tool.1
+++ b/doc/base64tool.1
@@ -29,6 +29,5 @@ the maximum line length to output. It defaults to 72 if left out.
 was written by Moritz Bunkus <moritz@bunkus.org>.
 .SH WWW
 The newest version can always be found at
-.UR http://www.bunkus.org/videotools/mkvtoolnix/
-<http://www.bunkus.org/videotools/mkvtoolnix/>
+.UR http://www.bunkus.org/\:videotools/\:mkvtoolnix/
 .UE
diff --git a/doc/mkvextract.1 b/doc/mkvextract.1
index 584248010..0f49a2da3 100644
--- a/doc/mkvextract.1
+++ b/doc/mkvextract.1
@@ -294,6 +294,5 @@ was written by Moritz Bunkus <moritz@bunkus.org>.
 .BR mkvinfo (1)
 .SH WWW
 The newest version can always be found at
-.UR http://www.bunkus.org/videotools/mkvtoolnix/
-<http://www.bunkus.org/videotools/mkvtoolnix/>
+.UR http://www.bunkus.org/\:videotools/\:mkvtoolnix/
 .UE
diff --git a/doc/mkvinfo.1 b/doc/mkvinfo.1
index f3b3008df..5db3926fb 100644
--- a/doc/mkvinfo.1
+++ b/doc/mkvinfo.1
@@ -85,6 +85,5 @@ was written by Moritz Bunkus <moritz@bunkus.org>.
 .BR mmg (1)
 .SH WWW
 The newest version can always be found at
-.UR http://www.bunkus.org/videotools/mkvtoolnix/
-<http://www.bunkus.org/videotools/mkvtoolnix/>
+.UR http://www.bunkus.org/\:videotools/\:mkvtoolnix/
 .UE
diff --git a/doc/mkvmerge.1 b/doc/mkvmerge.1
index ea55c1001..75596b082 100644
--- a/doc/mkvmerge.1
+++ b/doc/mkvmerge.1
@@ -14,7 +14,7 @@ mkvmerge \- Merge multimedia streams into a Matroska file
 .LP
 This program takes the input from several media files and joins
 their streams (all of them or just a selection) into a Matroska file.
-.UR http://www.matroska.org/
+.UR http://www.\:matroska.\:org/
 <http://www.matroska.org/>
 .UE
 
@@ -218,8 +218,8 @@ Plain text description of the following attachment. Applies to the next
 MIME type of the following attachment. Applies to the next
 \fB\-\-attach\-file\fR or \fB\-\-attach\-file\-once\fR command.
 A list of officially recognized MIME types can be found e.g. at
-.UR ftp://ftp.isi.edu/in-notes/iana/assignments/media-types/media-types
-<ftp://ftp.isi.edu/in-notes/iana/assignments/media-types/media-types>
+.UR http://www.iana.org/\:assignments/\:media-types/
+.UE
 The MIME type is mandatory for an attachment.
 .TP
 \fB\-\-attachment\-name\fR <\fIname\fR>
@@ -830,8 +830,8 @@ $ \fBmkvmerge -o output.mkv -A video.avi sound.ogg \-\-attachment\-description
 .LP
 The Matroska chapter system is more powerful than the old known system used
 by OGMs. The full specs can be found at
-.UR http://www.matroska.org/technical/specs/chapters/index.html
-<http://www.matroska.org/technical/specs/chapters/index.html>
+.UR http://\:www.matroska.org/\:technical/\:specs/\:chapters/\:index.html
+.UE
 .LP
 \fBmkvmerge\fR supports two kinds of chapter files as its input. The first
 format, called 'simple chapter format', is the same format that the OGM tools
@@ -1287,6 +1287,5 @@ was written by Moritz Bunkus <moritz@bunkus.org>.
 .BR mmg (1)
 .SH WWW
 The newest version can always be found at
-.UR http://www.bunkus.org/videotools/mkvtoolnix/
-<http://www.bunkus.org/videotools/mkvtoolnix/>
+.UR http://www.bunkus.org/\:videotools/\:mkvtoolnix/
 .UE
diff --git a/doc/mmg.1 b/doc/mmg.1
index 35497fb41..9d22af20d 100644
--- a/doc/mmg.1
+++ b/doc/mmg.1
@@ -36,6 +36,5 @@ was written by Moritz Bunkus <moritz@bunkus.org>.
 
 .SH WWW
 The newest version can always be found at
-.UR http://www.bunkus.org/videotools/mkvtoolnix/
-<http://www.bunkus.org/videotools/mkvtoolnix/>
+.UR http://www.bunkus.org/\:videotools/\:mkvtoolnix/
 .UE