diff --git a/frameworks/Ruby/roda-sequel/roda-sequel-postgres-iodine-mri.dockerfile b/frameworks/Ruby/roda-sequel/roda-sequel-postgres-iodine-mri.dockerfile
index 05851b9f9f1..c7f9fe856d1 100644
--- a/frameworks/Ruby/roda-sequel/roda-sequel-postgres-iodine-mri.dockerfile
+++ b/frameworks/Ruby/roda-sequel/roda-sequel-postgres-iodine-mri.dockerfile
@@ -18,4 +18,4 @@ ENV DBTYPE=postgresql
 
 EXPOSE 8080
 
-CMD bundle exec iodine -p 8080
+CMD bundle exec iodine -p 8080 -w $(ruby config/auto_tune.rb | grep -Eo '[0-9]+' | head -n 1)