diff --git a/src/Servers/H2OServer/Dockerfile b/src/Servers/H2OServer/Dockerfile
index b044ae3..4bb099e 100644
--- a/src/Servers/H2OServer/Dockerfile
+++ b/src/Servers/H2OServer/Dockerfile
@@ -1,8 +1,8 @@
 FROM ubuntu:24.04 AS build
-RUN apt-get update && apt-get install -y cmake gcc g++ pkg-config libssl-dev zlib1g-dev git && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y cmake gcc g++ pkg-config libssl-dev zlib1g-dev git ruby bison && rm -rf /var/lib/apt/lists/*
 RUN git clone --recurse-submodules --depth 1 https://github.com/h2o/h2o.git /src/h2o
 WORKDIR /src/h2o/build
-RUN cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local && make -j$(nproc) && make install
+RUN cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local -DWITH_MRUBY=ON && make -j$(nproc) && make install
 
 FROM ubuntu:24.04
 RUN apt-get update && apt-get install -y libssl3t64 && rm -rf /var/lib/apt/lists/*
diff --git a/src/Servers/H2OServer/h2o.conf b/src/Servers/H2OServer/h2o.conf
index 113e702..9c4a6ae 100644
--- a/src/Servers/H2OServer/h2o.conf
+++ b/src/Servers/H2OServer/h2o.conf
@@ -3,4 +3,5 @@ hosts:
   default:
     paths:
       /:
-        file.dir: /var/www
+        mruby.handler: |
+          proc {|env| [200, {"content-type" => "text/plain"}, ["OK"]] }