diff --git a/_posts/2023-08-17-maps.md b/_posts/2023-08-17-maps.md
index 96e545a..72d9b54 100644
--- a/_posts/2023-08-17-maps.md
+++ b/_posts/2023-08-17-maps.md
@@ -38,7 +38,7 @@ These black and white map tiles are from <a href="https://stamen.com/">Stamen de
     maxZoom: 16,
     ext: 'png'
     });
-    let Stamen_Toner = L.tileLayer('https://stamen-tiles-{s}.a.ssl.fastly.net/toner/{z}/{x}/{y}.{ext}', {
+    let Stamen_Toner = L.tileLayer('https://stamen-tiles-{s}.a.ssl.fastly.net/toner/{z}/{x}/{y}{r}.{ext}', {
     subdomains: 'abcd',
     minZoom: 0,
     maxZoom: 16,