diff --git a/.circleci/config.yml b/.circleci/config.yml
index cb96f09..7e3f1f1 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,9 @@ version: 2
 jobs:
   build:
     docker: # See https://docs.docker.com/get-started/#docker-concepts if you are new to Docker.
-      - image: circleci/ruby:2.4.1
+      - image: enumack/buildcontainers:gcc-8.1
     steps:
       - checkout
       - run: echo "A first hello"
+      - run: cd build
+      - run: pwd