diff --git a/source/clear-linux/concepts/security.rst b/source/clear-linux/concepts/security.rst
index 7c4b3d50..418b75f4 100644
--- a/source/clear-linux/concepts/security.rst
+++ b/source/clear-linux/concepts/security.rst
@@ -23,7 +23,7 @@ rapidly resolving known security advisories.
 
 
 The latest Linux* codebase
--------------------------
+--------------------------
 
 |CL| uses the newest version of the Linux kernel which allows the operating
 system to leverage the latest features from the upstream Linux kernel,