diff --git a/doc/install-guide/source/index.rst b/doc/install-guide/source/index.rst
index 93e4e5282c..59ed86060a 100644
--- a/doc/install-guide/source/index.rst
+++ b/doc/install-guide/source/index.rst
@@ -63,7 +63,7 @@ or as connected entities.
 Explanations of configuration options and sample configuration files
 are included.
 
-This guide documents OpenStack Liberty release.
+This guide documents OpenStack Mitaka release.
 
 .. warning::