diff --git a/.gitignore b/.gitignore
index 95530ea..dbb3ea0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@
 __pycache__
 htmlcov
 .coverage
+build
+env
diff --git a/README.md b/README.md
index bc51467..d78e2b4 100644
--- a/README.md
+++ b/README.md
@@ -3,10 +3,16 @@ This is work-in-progress.
 A basic syncronization utility for [vdir](https://github.com/untitaker/vdir).
 Should be able to sync both CardDAV and CalDAV in the end.
 
-## How to run
+## How to use
 
 Copy `config.example` to `~/.vdirsyncer/config` and edit it. You can use the
 `VDIRSYNCER_CONFIG` environment variable to change the path vdirsyncer will
 read the config from.
 
 Run `vdirsyncer --help`.
+
+## How to run the tests
+
+    pip install .
+    pip install -r dev_requirements.txt
+    py.test
diff --git a/dev_requirements.txt b/dev_requirements.txt
new file mode 100644
index 0000000..b0f903a
--- /dev/null
+++ b/dev_requirements.txt
@@ -0,0 +1,3 @@
+Radicale
+Werkzeug
+pytest
diff --git a/setup.py b/setup.py
index c952670..3db17bb 100644
--- a/setup.py
+++ b/setup.py
@@ -25,5 +25,5 @@ setup(
     entry_points={
         'console_scripts': ['vdirsyncer = vdirsyncer.cli:main']
     },
-    install_requires=['argvard', 'requests']
+    install_requires=['argvard', 'requests', 'lxml']
 )