diff --git a/css-color-4/Overview.bs b/css-color-4/Overview.bs
index fe475067de69..a1059345cea7 100644
--- a/css-color-4/Overview.bs
+++ b/css-color-4/Overview.bs
@@ -4632,6 +4632,7 @@ Interpolating with Missing Components</h3>
 	If any [=analogous components=] which are [=missing components=] are found,
 	they will be <strong>carried forward</strong>
 	and re-inserted in the converted color
+	before premultiplication, and
 	before linear interpolation takes place.
 
 	The <dfn export>analogous components</dfn>  are as follows: