diff --git a/setup.py b/setup.py
index 3a5eb9f..3c22699 100644
--- a/setup.py
+++ b/setup.py
@@ -23,9 +23,11 @@ def get_version():
         version_file.close()
         return version
     if os.path.exists('.git'):
-        p = subprocess.Popen(['git','describe','--long'], stdout=subprocess.PIPE)
+        p = subprocess.Popen(['git', 'describe', '--match=v*'],
+                stdout=subprocess.PIPE)
         result = p.communicate()[0]
-        return result.split()[0].replace('-','.')
+        version = result.split()[0][1:]
+        return version.replace('-','.')
     import cam
     return cam.__version__