diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index aaf587f49b..5a6b7dc76b 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-ENV['RAILS_ENV'] ||= 'test'
+ENV['RAILS_ENV'] = 'test'
 
 # This needs to be defined before Rails is initialized
 RUN_SYSTEM_SPECS = ENV.fetch('RUN_SYSTEM_SPECS', false)