diff --git a/climlab/__init__.py b/climlab/__init__.py
index <HASH>..<HASH> 100644
--- a/climlab/__init__.py
+++ b/climlab/__init__.py
@@ -9,3 +9,6 @@ __all__ = ["constants", "thermo", "orbital_table",
 
 # this should ensure that we can still import constants.py as climlab.constants           
 from climlab.utils import constants, thermo
+
+__version__ = '0.2'
+
diff --git a/setup.py b/setup.py
index <HASH>..<HASH> 100644
--- a/setup.py
+++ b/setup.py
@@ -4,8 +4,10 @@ def readme():
     with open('README.rst') as f:
         return f.read()
 
+import climlab
+
 setup(name='climlab',
-      version='0.2',
+      version=climlab.__version__,
       description='Package for process-oriented climate modeling',
       long_description=readme(),
       classifiers=[
Added __version__ attribute to climlab/__init__.py. setup.py now references this -- only one version tag to maintain.