Index: data/defaultpresets.xml
===================================================================
--- data/defaultpresets.xml	(revision 4553)
+++ data/defaultpresets.xml	(working copy)
@@ -289,6 +289,7 @@
                 <combo key="layer" text="Layer" values="5,4,3,2,1,0,-1,-2,-3,-4,-5" default="" delete_if_empty="true" />
                 <combo key="lanes" text="Lanes" values="1,2,3,4,5" default="" delete_if_empty="true" />
                 <text key="maxspeed" text="Max. speed (km/h)" default="" delete_if_empty="true" />
+                <combo key="surface" text="Surface" values="paved,unpaved,asphalt,concrete,metal,wood,paving_stones,cobblestone,gravel,pebblestone,compacted,grass_paver,grass,sand,ground" default="" delete_if_empty="true" />
                 <text key="width" text="Width (meters)" default="" delete_if_empty="true" />
                 <combo key="incline" text="Incline" values="10%,-10%,10°,-10°,up,down" default="" delete_if_empty="true" />
             </optional>