diff --git a/Dockerfile.dev b/Dockerfile.dev
index 75df4cab..dfd56efd 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -42,6 +42,7 @@ COPY --link . .
 # Let Rails generate the secret_key_base
 RUN ./bin/rails runner 'puts Rails.application.secret_key_base'
 RUN ./bin/rails assets:precompile
+RUN yarn build
 
 # Entrypoint prepares the database.
 ENTRYPOINT ["./bin/docker-entrypoint"]