diff --git a/assets/javascripts/discourse-assign/controllers/group-assigned-show.js.es6 b/assets/javascripts/discourse-assign/controllers/group-assigned-show.js.es6
index 53bb7fc..7966ce8 100644
--- a/assets/javascripts/discourse-assign/controllers/group-assigned-show.js.es6
+++ b/assets/javascripts/discourse-assign/controllers/group-assigned-show.js.es6
@@ -1,5 +1,5 @@
 import UserTopicsList from "discourse/controllers/user-topics-list";
-import { alias, readOnly } from "@ember/object/computed";
+import { alias } from "@ember/object/computed";
 import discourseDebounce from "discourse-common/lib/debounce";
 import { INPUT_DELAY } from "discourse-common/config/environment";
 import { inject as controller } from "@ember/controller";
@@ -18,8 +18,6 @@ export default UserTopicsList.extend({
 
   queryParams: ["order", "ascending", "search"],
 
-  searchTerm: readOnly("search"),
-
   _setSearchTerm(searchTerm) {
     this.set("search", searchTerm);
     this.refreshModel();
diff --git a/assets/javascripts/discourse-assign/controllers/user-activity-assigned.js.es6 b/assets/javascripts/discourse-assign/controllers/user-activity-assigned.js.es6
index 16b6430..c55a24d 100644
--- a/assets/javascripts/discourse-assign/controllers/user-activity-assigned.js.es6
+++ b/assets/javascripts/discourse-assign/controllers/user-activity-assigned.js.es6
@@ -8,7 +8,6 @@ import { action } from "@ember/object";
 import getURL from "discourse-common/lib/get-url";
 import { iconHTML } from "discourse-common/lib/icon-library";
 import I18n from "I18n";
-import { readOnly } from "@ember/object/computed";
 
 export default UserTopicsList.extend({
   user: controller(),
@@ -18,8 +17,6 @@ export default UserTopicsList.extend({
   ascending: false,
   search: "",
 
-  searchTerm: readOnly("search"),
-
   _setSearchTerm(searchTerm) {
     this.set("search", searchTerm);
     this.refreshModel();
diff --git a/assets/javascripts/discourse/templates/group-topics-list.hbs b/assets/javascripts/discourse/templates/group-topics-list.hbs
index 90dc6da..017e48c 100644
--- a/assets/javascripts/discourse/templates/group-topics-list.hbs
+++ b/assets/javascripts/discourse/templates/group-topics-list.hbs
@@ -2,7 +2,7 @@
   <div class="inline-form full-width">
     {{input
       class="no-blur"
-      value=searchTerm
+      value=(readonly search)
       placeholder=(i18n "discourse_assign.topic_search_placeholder")
       input=(action "onChangeFilter" value="target.value")
       autocomplete="discourse"
diff --git a/assets/javascripts/discourse/templates/group/assigned.hbs b/assets/javascripts/discourse/templates/group/assigned.hbs
index a22119f..af1a8fb 100644
--- a/assets/javascripts/discourse/templates/group/assigned.hbs
+++ b/assets/javascripts/discourse/templates/group/assigned.hbs
@@ -5,7 +5,7 @@
         {{input
           type="text"
           placeholder=(i18n "discourse_assign.sidebar_name_filter_placeholder")
-          value=filterName
+          value=(readonly filterName)
           class="search"
           input=(action "onChangeFilterName" value="target.value")
         }}
diff --git a/assets/javascripts/discourse/templates/user-assigned-topics.hbs b/assets/javascripts/discourse/templates/user-assigned-topics.hbs
index 7d78e69..6a172df 100644
--- a/assets/javascripts/discourse/templates/user-assigned-topics.hbs
+++ b/assets/javascripts/discourse/templates/user-assigned-topics.hbs
@@ -10,7 +10,7 @@
     <div class="inline-form full-width">
       {{input
         class="no-blur"
-        value=searchTerm
+        value=(readonly search)
         placeholder=(i18n "discourse_assign.topic_search_placeholder")
         input=(action "onChangeFilter" value="target.value")
         autocomplete="discourse"
@@ -39,4 +39,3 @@
     {{conditional-loading-spinner condition=model.loadingMore}}
   {{/load-more}}
 {{/if}}
-