diff --git a/test/integration/oauth2_endpoints_test.rb b/test/integration/oauth2_endpoints_test.rb
index 7a375c3b7..d7d184d1e 100644
--- a/test/integration/oauth2_endpoints_test.rb
+++ b/test/integration/oauth2_endpoints_test.rb
@@ -188,7 +188,8 @@ def test_redirect_response_not_running
 
       assert last_response.status == 500
 
-      expected_error_message = "No actively running launch sequences found with a state of #{bad_state}"
+      expected_error_message = "No actively running launch sequences found with a 'state' parameter of '#{bad_state}'"
+
       assert last_response.body.include? expected_error_message
       break
     end