diff --git a/css-logical-1/Overview.bs b/css-logical-1/Overview.bs
index 4c31f97e370a..8149476ed5fd 100644
--- a/css-logical-1/Overview.bs
+++ b/css-logical-1/Overview.bs
@@ -204,17 +204,18 @@ Logical Values for the 'caption-side' Property</h3>
 
   <pre class="propdef partial">
     Name: caption-side
-    New values: inline-start | inline-end
+    New values: inline-start | inline-end | block-start | block-end
     Computed value: specified keyword
   </pre>
 
-  These two values are added only for implementations that support
+  The <a>caption-side/inline-start</a> and <a>caption-side/inline-end</a> values
+  are added only for implementations that support
   ''caption-side/left'' and ''caption-side/right'' values for 'caption-side'.
   The ''caption-side/left'' and ''caption-side/right'' values themselves
   are defined to be <a>line-relative</a>.
 
-  The existing ''caption/top'' and ''caption/bottom'' values are idiosyncratically redefined
-  as assigning to the <a>block-start</a> and <a>block-end</a> sides of the table, respectively.
+  The <a>block-start</a> and <a>block-end</a> values are assigning to the existing
+  ''caption/top'' and ''caption/bottom'' sides of the table, respectively.
 
   The mapping on this property uses the <a>writing mode</a> of the caption’s <a>containing block</a>
   (that is, the <a>table wrapper box</a>).