diff --git a/test/config/puma.rb b/test/config/puma.rb
index 42857a5..6734997 100644
--- a/test/config/puma.rb
+++ b/test/config/puma.rb
@@ -19,3 +19,4 @@
 port ENV.fetch("PORT", 3000)
 plugin :tmp_restart
 # pidfile ENV["PIDFILE"] if ENV["PIDFILE"]
+pidfile ""