diff --git a/test/unit/project_test.rb b/test/unit/project_test.rb
index dcc4da356..20f34e266 100644
--- a/test/unit/project_test.rb
+++ b/test/unit/project_test.rb
@@ -119,7 +119,7 @@ class ProjectTest < ActiveSupport::TestCase
       p = Project.new
       p.identifier = identifier
       p.valid?
-      assert_equal valid, p.errors.on('identifier').nil?
+      assert_equal valid, p.errors['identifier'].nil?
     end
   end