diff --git a/libraries/msx264/README b/libraries/msx264/README
index cc5ddf82e3..d3436a5a07 100644
--- a/libraries/msx264/README
+++ b/libraries/msx264/README
@@ -1,7 +1,10 @@
 msx264 (x264 plugin for mediastreamer2)
 
 A GPL plugin to bring video H264 encoding/decoding capabilities to
-mediastreamer2 applications. It is based on ffmpeg for decoding and
-x264 for encoding.
+mediastreamer2 applications like Linphone. It is based on ffmpeg
+for decoding and x264 for encoding.
 
 It works with x264 versions later than september 2009.
+
+NOTE: this mediastreamer plugin is deprecated in favour of
+      msopenh264.
diff --git a/libraries/msx264/msx264.SlackBuild b/libraries/msx264/msx264.SlackBuild
index 6b99a03c10..6aa874306d 100644
--- a/libraries/msx264/msx264.SlackBuild
+++ b/libraries/msx264/msx264.SlackBuild
@@ -23,13 +23,13 @@
 #  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 PRGNAM=msx264
-VERSION=${VERSION:-1.5.2}
+VERSION=${VERSION:-1.5.3}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 
 if [ -z "$ARCH" ]; then
   case "$( uname -m )" in
-    i?86) ARCH=i486 ;;
+    i?86) ARCH=i586 ;;
     arm*) ARCH=arm ;;
        *) ARCH=$( uname -m ) ;;
   esac
@@ -40,8 +40,8 @@ TMP=${TMP:-/tmp/SBo}
 PKG=$TMP/package-$PRGNAM
 OUTPUT=${OUTPUT:-/tmp}
 
-if [ "$ARCH" = "i486" ]; then
-  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
   LIBDIRSUFFIX=""
 elif [ "$ARCH" = "i686" ]; then
   SLKCFLAGS="-O2 -march=i686 -mtune=i686"
@@ -54,6 +54,8 @@ else
   LIBDIRSUFFIX=""
 fi
 
+DOCS="AUTHORS COPYING ChangeLog INSTALL NEWS README $CWD/$PRGNAM.SlackBuild"
+
 set -e
 
 rm -rf $PKG
@@ -89,6 +91,9 @@ find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | gr
   | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
 
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a $DOCS  $PKG/usr/doc/$PRGNAM-$VERSION
+chown -R root:root $PKG/usr/doc/$PRGNAM-$VERSION
+chmod 0644 $PKG/usr/doc/$PRGNAM-$VERSION/*
 cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
 
 mkdir -p $PKG/install
diff --git a/libraries/msx264/msx264.info b/libraries/msx264/msx264.info
index 2ae775c0d1..d628e9131f 100644
--- a/libraries/msx264/msx264.info
+++ b/libraries/msx264/msx264.info
@@ -1,8 +1,8 @@
 PRGNAM="msx264"
-VERSION="1.5.2"
+VERSION="1.5.3"
 HOMEPAGE="https://github.com/Distrotech/msx264"
-DOWNLOAD="http://download.savannah.gnu.org/releases/linphone/plugins/sources/msx264-1.5.2.tar.gz"
-MD5SUM="877113f35d47b68b0ee60f934a2fee3f"
+DOWNLOAD="https://www.linphone.org/releases/sources/plugins/msx264/msx264-1.5.3.tar.gz"
+MD5SUM="8dc5482d12bdb5d89bdfa9f71163e08a"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
 REQUIRES="linphone x264"
diff --git a/libraries/msx264/slack-desc b/libraries/msx264/slack-desc
index 5fcbdba175..17c11e262d 100644
--- a/libraries/msx264/slack-desc
+++ b/libraries/msx264/slack-desc
@@ -9,11 +9,11 @@
 msx264: msx264 (x264 plugin for mediastreamer2)
 msx264:
 msx264: msx264 - a GPL plugin to bring video H264 encoding/decoding
-msx264: capabilities to mediastreamer2 applications. It is based on ffmpeg
-msx264: for decoding and x264 for encoding.
+msx264: capabilities to mediastreamer2 applications like Linphone. It is
+msx264: based on ffmpeg for decoding and x264 for encoding.
 msx264:
 msx264: It works with x264 versions later than september 2009.
 msx264:
-msx264:
-msx264:
+msx264: NOTE: this mediastreamer plugin is deprecated in favour of
+msx264:       msopenh264.
 msx264: