diff --git a/data/imagery.json b/data/imagery.json
index 2586fc185..6c8651f16 100644
--- a/data/imagery.json
+++ b/data/imagery.json
@@ -31674,7 +31674,7 @@
         "name": "basemap.at",
         "type": "tms",
         "description": "Basemap of Austria, based on goverment data.",
-        "template": "http://maps.wien.gv.at/basemap/geolandbasemap/normal/google3857/{zoom}/{y}/{x}.jpeg",
+        "template": "http://maps.wien.gv.at/basemap/geolandbasemap/normal/google3857/{zoom}/{y}/{x}.png",
         "polygon": [
             [
                 [