diff --git a/Shorewall/compiler b/Shorewall/compiler
index 08f7b6de7..fe6ba701b 100755
--- a/Shorewall/compiler
+++ b/Shorewall/compiler
@@ -3112,6 +3112,11 @@ setup_traffic_shaping()
 	esac
 
 	eval devnum=\$$(chain_base $device)_devnum
+	#
+	# Convert HEX/OCTAL mark representation to decimal
+	#
+	mark=$(($mark))
+
 	classid=$devnum:1$mark
 
 	[ -n "$devnum" ] || fatal_error "Device $device not defined in $devfile"