diff --git a/setup.py b/setup.py
index 7f78f98..6ad4153 100644
--- a/setup.py
+++ b/setup.py
@@ -54,7 +54,7 @@ def get_version():
                 real_number, commit_count, commit_hash = result.split('-', 2)
                 version = '%s.post%s+%s' % (real_number, commit_count, commit_hash)
             else:
-                version = result
+                version = result.replace('.dirty', '+dirty')
             return version
         else:
             return '0.0.post%s' % len(subprocess.check_output(['git', 'rev-list', 'HEAD']).splitlines())