diff --git a/spec/system/assign_topic_spec.rb b/spec/system/assign_topic_spec.rb
index 364a5d6..8bc143a 100644
--- a/spec/system/assign_topic_spec.rb
+++ b/spec/system/assign_topic_spec.rb
@@ -10,6 +10,7 @@ describe "Assign | Assigning topics", type: :system do
 
   before do
     SiteSetting.assign_enabled = true
+    SiteSetting.prioritize_full_name_in_ux = false
 
     # The system tests in this file are flaky and auth token related so turning this on
     SiteSetting.verbose_auth_token_logging = true