diff --git a/app/views/layouts/blank.html.erb b/app/views/layouts/blank.html.erb
index 493cbffdc..08bdd13b1 100644
--- a/app/views/layouts/blank.html.erb
+++ b/app/views/layouts/blank.html.erb
@@ -8,7 +8,7 @@
   <link rel="top" title="<%= Danbooru.config.app_name %>" href="/">
   <%= csrf_meta_tag %>
   <%= raw Danbooru.config.custom_html_header_content %>
-  <%= javascript_pack_tag "application" %>
+  <%= javascript_pack_tag "application", defer: false %>
   <%= stylesheet_pack_tag "application" %>
   <%= yield :html_header %>
 </head>
diff --git a/app/views/layouts/default.html.erb b/app/views/layouts/default.html.erb
index 2e99094a1..f683c0973 100644
--- a/app/views/layouts/default.html.erb
+++ b/app/views/layouts/default.html.erb
@@ -22,9 +22,9 @@
 
   <%# XXX hack to only load Ruffle on Flash posts %>
   <% if controller_name == "posts" && action_name == "show" && @post&.is_flash? %>
-    <%= javascript_pack_tag "application", "flash" %>
+    <%= javascript_pack_tag "application", "flash", defer: false %>
   <% else %>
-    <%= javascript_pack_tag "application" %>
+    <%= javascript_pack_tag "application", defer: false %>
   <% end %>
 
   <%= stylesheet_pack_tag "application" %>