diff --git a/README.rst b/README.rst
index 95da5ac..d9fd3b4 100644
--- a/README.rst
+++ b/README.rst
@@ -22,7 +22,7 @@ this package allows to extract it from the underlying Git repository:
 
     setup(
         name='foobar',
-        version_format='{tag}.dev{commitcount}+{gitsha}',
+        version_format='{tag}.dev{commitcount}+{gitsha}-{dirty}',
         setup_requires=['setuptools-git-version'],
         ...)
 
@@ -36,6 +36,7 @@ Fields
 * ``tag``: The latest tag (probably a release version like ``v1.0.3``) in your repository
 * ``commitcount``: The number of additional commits on top of this tag (e.g. ``13``)
 * ``gitsha``: An abbreviated commit hash of the latest commit in your repository
+* ``dirty``: Result of the --dirty git option
 
 Implementation Details
 ----------------------
@@ -53,6 +54,11 @@ your repository
 Changes
 -------
 
+1.0.5 - 2019-07-17
+++++++++++++++++++
+
+- [feature] added dirty to version_format
+
 1.0.4 - 2016-06-22
 ++++++++++++++++++
 
diff --git a/setuptools_git_version.py b/setuptools_git_version.py
index b788362..cbb9821 100644
--- a/setuptools_git_version.py
+++ b/setuptools_git_version.py
@@ -3,7 +3,7 @@
 
 
 command = 'git describe --tags --long --dirty'
-fmt = '{tag}.{commitcount}+{gitsha}'
+fmt = '{tag}.{commitcount}+{gitsha}-{dirty}'
 
 
 def validate_version_format(dist, attr, value):
@@ -23,7 +23,7 @@ def format_version(version, fmt=fmt):
     tag, count, sha = parts[:3]
     if count == '0' and not dirty:
         return tag
-    return fmt.format(tag=tag, commitcount=count, gitsha=sha.lstrip('g'))
+    return fmt.format(tag=tag, commitcount=count, gitsha=sha.lstrip('g'), dirty='Dirty' if dirty else '')
 
 
 def get_git_version():