diff --git a/Documentation/powerpc/cxl.rst b/Documentation/powerpc/cxl.rst
index 920546d81326..d2d77057610e 100644
--- a/Documentation/powerpc/cxl.rst
+++ b/Documentation/powerpc/cxl.rst
@@ -133,6 +133,7 @@ User API
 ========
 
 1. AFU character devices
+^^^^^^^^^^^^^^^^^^^^^^^^
 
     For AFUs operating in AFU directed mode, two character device
     files will be created. /dev/cxl/afu0.0m will correspond to a
@@ -395,6 +396,7 @@ read
 
 
 2. Card character device (powerVM guest only)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
     In a powerVM guest, an extra character device is created for the
     card. The device is only used to write (flash) a new image on the