diff --git a/archivers/xzize.sh b/archivers/xzize.sh
index b3b82fc..5024ec6 100755
--- a/archivers/xzize.sh
+++ b/archivers/xzize.sh
@@ -28,136 +28,138 @@ COMPRESSION_LEVEL=
 
 test_extension()
 {
-	FILE="$1"
-	EXTENSION="$2"
-	NEWEXTENSION=xz
-	if [ $# -eq 3 ] ; then
-		NEWEXTENSION="$3"
-	fi
+    FILE="$1"
+    EXTENSION="$2"
+    NEWEXTENSION=xz
+    if [ $# -eq 3 ] ; then
+        NEWEXTENSION="$3"
+    fi
 
-	BASE="$(basename "$FILE" ."$EXTENSION")"
-	if [ "$BASE" != "$FILE" ] ; then
-		DEST="$BASE".$NEWEXTENSION
-		return 0
-	fi
+    BASE="$(basename "$FILE" ."$EXTENSION")"
+    if [ "$BASE" != "$FILE" ] ; then
+        DEST="$BASE".$NEWEXTENSION
+        return 0
+    fi
 
-	DEST="$FILE"
-	return 1
+    DEST="$FILE"
+    return 1
 }
 
 
 do_recompress()
 {
-	if [ -e "$DEST" ] ; then
-		echo "Skipping source file « $SOURCE »: destination file « $DEST » already exists!" >&2
-		return 0
-	fi
-	echo "Recompressing « $SOURCE » to  « $DEST »…"
-	$ACTION -c "$SOURCE" | xz $COMPRESSION_LEVEL >"$DEST"
-	return $?
+    if [ -e "$DEST" ] ; then
+        echo "Skipping source file « $SOURCE »: destination file « $DEST » already exists!" >&2
+        return 0
+    fi
+    echo "Recompressing « $SOURCE » to  « $DEST »…"
+    $ACTION -c "$SOURCE" | xz $COMPRESSION_LEVEL >"$DEST"
+    return $?
 }
 
 
 ## Verify number of arguments ##
 
 if [ $# -lt 1 ] ; then
-	echo "$0 requires at least one argument!" >&2
-	exit 2
+    echo "$0 requires at least one argument!" >&2
+    exit 2
 fi
 
 
 ## Process files ##
 
 for SOURCE in "$@" ; do
-	# Does source file exist?
-	if [ ! -e "$SOURCE" ] ; then
-		echo "Skipping source file « $SOURCE »: does not exist!" >&2
-		continue
-	fi
+    # Does source file exist?
+    if [ ! -e "$SOURCE" ] ; then
+        echo "Skipping source file « $SOURCE »: does not exist!" >&2
+        continue
+    fi
 
-	# Does source file is regular?
-	if [ ! -f "$SOURCE" ] ; then
-		echo "Skipping source file « $SOURCE »: is not a regular file!" >&2
-		continue
-	fi
+    # Is source file regular?
+    if [ ! -f "$SOURCE" ] ; then
+        echo "Skipping source file « $SOURCE »: is not a regular file!" >&2
+        continue
+    fi
 
-	# GZip
-	if test_extension "$SOURCE" gz ; then
-		ACTION="gunzip"
-		do_recompress
-		continue
-	fi
+    # GZip
+    if test_extension "$SOURCE" gz ; then
+        ACTION="gunzip"
+        do_recompress
+        continue
+    fi
 
-	# GZipped Tar (.tgz)
-	if test_extension "$SOURCE" tgz $TAR_XZ_EXT ; then
-		ACTION="gunzip"
-		do_recompress
-		continue
-	fi
+    # GZipped Tar (.tgz)
+    if test_extension "$SOURCE" tgz $TAR_XZ_EXT ; then
+        ACTION="gunzip"
+        do_recompress
+        continue
+    fi
 
-	# BZip2
-	if test_extension "$SOURCE" bz2 ; then
-		ACTION="bunzip2"
-		do_recompress
-		continue
-	fi
+    # BZip2
+    if test_extension "$SOURCE" bz2 ; then
+        ACTION="bunzip2"
+        do_recompress
+        continue
+    fi
 
-	# BZipped Tar (.tbz)
-	if test_extension "$SOURCE" tbz $TAR_XZ_EXT ; then
-		ACTION="bunzip2"
-		do_recompress
-		continue
-	fi
+    # BZipped Tar (.tbz)
+    if test_extension "$SOURCE" tbz $TAR_XZ_EXT ; then
+        ACTION="bunzip2"
+        do_recompress
+        continue
+    fi
 
-	# BZipped Tar (.tb2)
-	if test_extension "$SOURCE" tb2 $TAR_XZ_EXT ; then
-		ACTION="bunzip2"
-		do_recompress
-		continue
-	fi
+    # BZipped Tar (.tb2)
+    if test_extension "$SOURCE" tb2 $TAR_XZ_EXT ; then
+        ACTION="bunzip2"
+        do_recompress
+        continue
+    fi
 
-	# LZMA
-	if test_extension "$SOURCE" lzma ; then
-		ACTION="unlzma"
-		do_recompress
-		continue
-	fi
+    # LZMA
+    if test_extension "$SOURCE" lzma ; then
+        ACTION="unlzma"
+        do_recompress
+        continue
+    fi
 
-	# LZMA compressed Tar (.tlz)
-	if test_extension "$SOURCE" tlz $TAR_XZ_EXT ; then
-		ACTION="unlzma"
-		do_recompress
-		continue
-	fi
+    # LZMA compressed Tar (.tlz)
+    if test_extension "$SOURCE" tlz $TAR_XZ_EXT ; then
+        ACTION="unlzma"
+        do_recompress
+        continue
+    fi
 
-	# Compress
-	if test_extension "$SOURCE" Z ; then
-		ACTION="uncompress"
-		do_recompress
-		continue
-	fi
+    # Compress
+    if test_extension "$SOURCE" Z ; then
+        ACTION="uncompress"
+        do_recompress
+        continue
+    fi
 
-	# Compressed Tar (.taz)
-	if test_extension "$SOURCE" taz $TAR_XZ_EXT ; then
-		ACTION="uncompress"
-		do_recompress
-		continue
-	fi
+    # Compressed Tar (.taz)
+    if test_extension "$SOURCE" taz $TAR_XZ_EXT ; then
+        ACTION="uncompress"
+        do_recompress
+        continue
+    fi
 
-	# XZ
-	if test_extension "$SOURCE" xz ; then
-		echo "Skipping source file « $DEST »: has already .xz suffix!" >&2
-		continue
-	fi
+    # XZ
+    if test_extension "$SOURCE" xz ; then
+        echo "Skipping source file « $DEST »: has already .xz suffix!" >&2
+        continue
+    fi
 
-	# XZipped Tar (.txz)
-	if test_extension "$SOURCE" txz $TAR_XZ_EXT ; then
-		echo "Skipping source file « $DEST »: seems to be a XZipped Tar archive (.txz suffix)!" >&2
-		continue
-	fi
+    # XZipped Tar (.txz)
+    if test_extension "$SOURCE" txz $TAR_XZ_EXT ; then
+        echo "Skipping source file « $DEST »: seems to be a XZipped Tar archive (.txz suffix)!" >&2
+        continue
+    fi
 
-	# Uncompressed file: fall back to simple compression
-	echo "Compressing « $SOURCE » to xz…"
-	xz $COMPRESSION_LEVEL "$SOURCE"
+    # Uncompressed file: fall back to simple compression
+    echo "Compressing « $SOURCE » to xz…"
+    xz $COMPRESSION_LEVEL "$SOURCE"
 
 done
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4