diff --git a/app/views/cards/assignments/new.html.erb b/app/views/cards/assignments/new.html.erb
index 07ad6531b..ee7f38c2d 100644
--- a/app/views/cards/assignments/new.html.erb
+++ b/app/views/cards/assignments/new.html.erb
@@ -1,5 +1,5 @@
 <%= turbo_frame_tag @card, :assignment do %>
-  <%= tag.div class: "max-width", data: {
+  <%= tag.div class: "max-width full-width", data: {
 				action: "turbo:before-cache@document->dialog#close dialog:show@document->navigable-list#reset keydown->navigable-list#navigate filter:changed->navigable-list#reset",
 				controller: "filter navigable-list",
 				dialog_target: "dialog",
@@ -11,10 +11,8 @@
       <kbd class="txt-xx-small hide-on-touch">a</kbd>
     </div>
 
-    <% if @users.many? %>
-			<%= text_field_tag :search, nil, placeholder: "Filter…", class: "input input--transparent txt-small margin-block-half", autofocus: true,
-						type: "search", autocorrect: "off", autocomplete: "off", data: { "1p-ignore": "true", filter_target: "input", action: "input->filter#filter" } %>
-    <% end %>
+    <%= text_field_tag :search, nil, placeholder: "Filter…", class: "input input--transparent txt-small margin-block-half", autofocus: true,
+          type: "search", autocorrect: "off", autocomplete: "off", data: { "1p-ignore": "true", filter_target: "input", action: "input->filter#filter" } %>
 
     <ul class="popup__list" data-filter-target="list">
       <% @users.each do |user| %>