diff --git a/debian/changelog b/debian/changelog
index bad62b9c..65806e1a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,7 @@
 byobu (3.33) unreleased; urgency=low
 
   * usr/bin/byobu-launch: make sure this finishes with a true
+  * usr/lib/byobu/disk_io: conditionally use readlink -f, LP: #764584
 
  -- Dustin Kirkland <kirkland@ubuntu.com>  Sun, 17 Apr 2011 13:30:34 -0500
 
diff --git a/usr/lib/byobu/disk_io b/usr/lib/byobu/disk_io
index a20d49a9..f1c022b3 100755
--- a/usr/lib/byobu/disk_io
+++ b/usr/lib/byobu/disk_io
@@ -29,7 +29,8 @@ case $MP in
 	/dev/*) disk="$MP" ;;
 	*) disk=$(grep -m 1 " $MP " /etc/mtab | sed -e "s: .*$::") ;;
 esac
-disk=$(readlink "$disk" | sed -e "s: .*$::" -e "s:^.*/::" -e "s:\([hsv]d[a-z]\)[0-9]*$:\1:")
+which greadlink 2>/dev/null && READLINK="greadlink" || READLINK="readlink"
+disk=$($READLINK -f "$disk" | sed -e "s: .*$::" -e "s:^.*/::" -e "s:\([hsv]d[a-z]\)[0-9]*$:\1:")
 
 if [ "$1" = "--detail" ]; then
 	if which iostat >/dev/null; then