diff --git a/roads.mss b/roads.mss
index cf5f79501d..9220629b28 100644
--- a/roads.mss
+++ b/roads.mss
@@ -1393,8 +1393,8 @@ tertiary is rendered from z10 and is not included in osm_planet_roads. */
 
     [feature = 'highway_living_street'] {
       [zoom >= 13] {
-        line-width: @living-street-width-z13 - 2 * @casing-width-z13;
-        [zoom >= 14] { line-width: @living-street-width-z14 - 2 * @casing-width-z14; }
+        line-width: @living-street-width-z13 - 2 * @residential-casing-width-z13;
+        [zoom >= 14] { line-width: @living-street-width-z14 - 2 * @residential-casing-width-z14; }
         [zoom >= 15] { line-width: @living-street-width-z15 - 2 * @casing-width-z15; }
         [zoom >= 16] { line-width: @living-street-width-z16 - 2 * @casing-width-z16; }
         [zoom >= 17] { line-width: @living-street-width-z17 - 2 * @casing-width-z17; }