diff --git a/README.md b/README.md
index a0e3a1e..61007d3 100644
--- a/README.md
+++ b/README.md
@@ -93,3 +93,13 @@ $ python -m lmwsip.run /tmp/hoek-h10.sip
 > [LO]
 < [! ]
 ```
+
+### Git pre commit hook
+
+Er is een git pre-commit hook aanwezig in "githooks". Deze moet geactiveerd
+worden door hem te symlinken naar .git/hooks.
+
+Deze git hook verzorgt een versie nummer en een syntax check voor commit.
+
+Het versie nummer komt uit de setup.py en word in de module geplaats als
+`__version__`.
diff --git a/githooks/pre-commit b/githooks/pre-commit
new file mode 100755
index 0000000..0bc8e4a
--- /dev/null
+++ b/githooks/pre-commit
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+VERSION=$(grep version setup.py | sed -e 's/.*="//' -e 's/",//')
+sed -i "s/^__version__ = .*/__version__ = '${VERSION}'/"  lmwsip/__init__.py
+git add lmwsip/__init__.py
+
+python setup.py test
diff --git a/lmwsip/__init__.py b/lmwsip/__init__.py
index a225a22..6dfef0d 100644
--- a/lmwsip/__init__.py
+++ b/lmwsip/__init__.py
@@ -11,6 +11,8 @@ import logging
 from datetime import datetime, timedelta
 from dateutil import tz
 
+__version__ = '0.1.01'
+
 class LmwSip:
     """Class to connect to the LMW Standard Interface prototcol (sip)
     
diff --git a/lmwsip/tests/__init__.py b/lmwsip/tests/__init__.py
index e9e7782..4cecdf0 100755
--- a/lmwsip/tests/__init__.py
+++ b/lmwsip/tests/__init__.py
@@ -129,6 +129,9 @@ class lmwsipTest(unittest.TestCase):
         sleep(2)
         self.assertEqual(self.sip.sendrecv("LOGOUTCOUNT"), "1\r")
 
+    def test_versionstr(self):
+        self.assertEqual(type(lmwsip.__version__), str)
+
     def test_run(self):
         capturedOutput = io.StringIO() 
         sys.stdout = capturedOutput
diff --git a/setup.py b/setup.py
index 54ed029..ac302cc 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="lmwsip", # Replace with your own username
-    version="0.0.10",
+    version="0.1.01",
     author="Marcel Nijenhof",
     author_email="pip@pion.xs4all.nl",
     description="Interface for the lmw sip protocol",