diff --git a/src/server.js b/src/server.js
index ae2f8ff..3b399b0 100644
--- a/src/server.js
+++ b/src/server.js
@@ -454,13 +454,11 @@ function start(opts) {
       if (style.serving_rendered) {
         const { center } = style.serving_rendered.tileJSON;
         if (center) {
-          style.viewer_hash = `#${center[2]}/${center[1].toFixed(
-            5,
-          )}/${center[0].toFixed(5)}`;
+          style.viewer_hash = `#${center[2]}/${center[1].toFixed(5)}/${center[0].toFixed(5)}`;
 
           const centerPx = mercator.px([center[0], center[1]], center[2]);
           // Set thumbnail default size to be 256px x 256px
-          style.thumbnail = `256/${center[2]}/${Math.floor(centerPx[0] / 256)}/${Math.floor(centerPx[1] / 256)}.png`;
+          style.thumbnail = `${center[2]}/${Math.floor(centerPx[0] / 256)}/${Math.floor(centerPx[1] / 256)}.png`;
         }
 
         style.xyz_link = getTileUrls(