diff --git a/xdg-utils/scripts/xdg-su.in b/xdg-utils/scripts/xdg-su.in
index 5985e8a..90d7c6b 100644
--- a/xdg-utils/scripts/xdg-su.in
+++ b/xdg-utils/scripts/xdg-su.in
@@ -93,6 +93,15 @@ su_generic()
     fi
 }
 
+su_xfce()
+{
+    if which gnomesu &>/dev/null ; then
+        su_gnome
+    else
+        su_generic
+    fi
+}
+
 [ x"$1" != x"" ] || exit_failure_syntax
 
 user=
@@ -150,6 +159,10 @@ case "$DE" in
     su_gnome
     ;;
 
+    xfce)
+    su_xfce
+    ;;
+
     generic)
     su_generic
     ;;