diff --git a/Dockerfile b/Dockerfile
index c990d4e..1f3616d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,8 @@ FROM python AS sphinx_build
 WORKDIR /app
 COPY --from=composer /app /app
 RUN pip3 install Sphinx sphinx_rtd_theme
-RUN make html
+ARG language=en
+RUN make -e "SPHINXOPTS=-D language='${language}'" html
 
 FROM nginx
 WORKDIR /usr/share/nginx/html
diff --git a/README.md b/README.md
index 132a10a..6b17da2 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,13 @@ $ docker-compose up --build
 
 Go to [http://localhost:8080/](http://localhost:8080/) to read the generated documentation.
 
+If you want to localize your documentation you can pass the locale as an argument to the docker build:
+
+```bash
+$ docker-compose build --build-arg language=de
+$ docker-compose up
+```
+
 ## Patterns
 
 The patterns can be structured in roughly three different categories. Please click on the [:notebook:](http://en.wikipedia.org/wiki/Software_design_pattern) for a full explanation of the pattern on Wikipedia.
diff --git a/docker-compose.yml b/docker-compose.yml
index 7c02d5a..aa8819f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,5 +4,7 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
+      args: 
+        language: ${language:-en}
     ports:
       - "8080:80"