diff --git a/app/assets/js/services/global-vars.js b/app/assets/js/services/global-vars.js
index 876e90e7b..b8f39af51 100644
--- a/app/assets/js/services/global-vars.js
+++ b/app/assets/js/services/global-vars.js
@@ -30,8 +30,8 @@ export const REACTIVESEARCH_SORT_OPTIONS = [
 
 export const IIIF_SIZES = {
   IIIF_SQUARE: "/square/500,500/0/default.jpg",
-  IIIF_FULL: "/full/full/0/default.jpg",
-  IIIF_FULL_TIFF: "/full/full/0/default.tif",
+  IIIF_FULL: "/full/max/0/default.jpg",
+  IIIF_FULL_TIFF: "/full/max/0/default.tif",
 };
 
 // Browser localStorage variable used to hold code lists