diff --git a/js/src/common/models/User.js b/js/src/common/models/User.js
index 177ac71ef..2d2092424 100644
--- a/js/src/common/models/User.js
+++ b/js/src/common/models/User.js
@@ -91,7 +91,7 @@ Object.assign(User.prototype, {
       user.freshness = new Date();
       m.redraw();
     };
-    image.crossOrigin = 'Anonymous';
+    image.crossOrigin = 'anonymous';
     image.src = this.avatarUrl();
   },