diff --git a/doc/source/planning/kubernetes/container-security-df8a251ec03f.rst b/doc/source/planning/kubernetes/container-security-df8a251ec03f.rst
index bcf0f9d46..c4ab0c537 100644
--- a/doc/source/planning/kubernetes/container-security-df8a251ec03f.rst
+++ b/doc/source/planning/kubernetes/container-security-df8a251ec03f.rst
@@ -125,4 +125,4 @@ to:
 
 -   access trusted data in Notary server corresponding to the image
 
-For more information about Portieris, including installation instructions, see :ref:'portieris-overview'.
+For more information about Portieris, including installation instructions, see :ref:`portieris-overview`.