diff --git a/run.sh b/run.sh
index 9de7ac80..22f1fab7 100755
--- a/run.sh
+++ b/run.sh
@@ -16,8 +16,9 @@ echo "app_lang: $app_lang"
 
 function run_ruby() {
   rbenv global 3.1.4
+  rm -rf /home/ishocon/webapp/ruby/unicorn.pid
   unicorn -c unicorn_config.rb
-echo "app_lang: $app_lang"
+  echo "app_lang: $app_lang"
 
 function make_tmp_file() {
   touch /tmp/ishocon-app
diff --git a/webapp/ruby/unicorn_config.rb b/webapp/ruby/unicorn_config.rb
index e94809b9..8de3137e 100644
--- a/webapp/ruby/unicorn_config.rb
+++ b/webapp/ruby/unicorn_config.rb
@@ -1,4 +1,4 @@
 worker_processes 16
 preload_app true
-pid '/tmp/unicorn.pid'
+pid './unicorn.pid'
 listen 8080