diff --git a/app/controllers/global_activities_controller.rb b/app/controllers/global_activities_controller.rb
index 1ea1038c9..56eeca497 100644
--- a/app/controllers/global_activities_controller.rb
+++ b/app/controllers/global_activities_controller.rb
@@ -58,7 +58,7 @@ class GlobalActivitiesController < ApplicationController
     respond_to do |format|
       format.json do
         render json: {
-          activities_html: render_to_string(partial: 'activity_list'),
+          activities_html: render_to_string(partial: 'activity_list', formats: :html),
           next_page: @next_page,
           starting_timestamp: @starting_timestamp
         }
diff --git a/app/views/shared/_atwho_user_container.erb b/app/views/shared/_atwho_user_container.erb
index 71c85919e..83f9f1a53 100644
--- a/app/views/shared/_atwho_user_container.erb
+++ b/app/views/shared/_atwho_user_container.erb
@@ -21,14 +21,14 @@
     data-full-name="<%= user.full_name %>"
     data-email="<%= user.email %>"
     data-popover-html="<%= popover_html %>"
-    data-user-avatar-popover-absolute-url="<%= user_avatar_popover_absolute_url %>"
+    data-user-avatar-popover-absolute-url="<%= user_avatar_absolute_url(user, :thumb, true) %>"
   >
     <% unless skip_avatar %>
       <span class="global-avatar-container smart-annotation">
         <img
-          src="<%= user_avatar_absolute_url %>"
+          src="<%= user_avatar_absolute_url(user, :icon_small, true) %>"
           alt="avatar" class="atwho-user-img-popover"
-          ref="<%= 'missing-img' unless user.avatar.attached? %>%">
+          ref="<%= 'missing-img' unless user.avatar.attached? %>">
       </span>
     <% end %>
     <%= user.full_name %>