diff --git a/examples/arcgis-image.html b/examples/arcgis-image.html
index 87b6e43089..241e0c1def 100644
--- a/examples/arcgis-image.html
+++ b/examples/arcgis-image.html
@@ -6,6 +6,6 @@ docs: >
   This example shows how to use a dynamic ArcGIS REST MapService.
   This source type supports Map and Image Services. For dyamic ArcGIS
   services.
-tags: arcgis, image, dynamiclayer"
+tags: "arcgis, image, dynamiclayer"
 ---
 <div id="map" class="map"></div>
diff --git a/examples/arcgis-tiled.html b/examples/arcgis-tiled.html
index 576abf6b4d..a92546eca5 100644
--- a/examples/arcgis-tiled.html
+++ b/examples/arcgis-tiled.html
@@ -7,6 +7,6 @@ docs: >
   This source type supports Map and Image Services. For cached ArcGIS
   services, better performance is available by using
   <code>ol/source/XYZ</code> instead.
-tags: arcgis, tile, tilelayer"
+tags: "arcgis, tile, tilelayer"
 ---
 <div id="map" class="map"></div>