diff --git a/config/site_settings.yml b/config/site_settings.yml
index fdbd1334633..80658f628c4 100644
--- a/config/site_settings.yml
+++ b/config/site_settings.yml
@@ -1233,7 +1233,7 @@ files:
     default: 50000
     max: 1024000
   theme_authorized_extensions:
-    default: "jpg|jpeg|png|woff|woff2|svg|eot|ttf|otf|gif|js"
+    default: "jpg|jpeg|png|woff|woff2|svg|eot|ttf|otf|gif|webp|js"
     type: list
     list_type: compact
   authorized_extensions: