diff --git a/selectors-4/Overview.bs b/selectors-4/Overview.bs
index 675799031fa..988aa397b17 100644
--- a/selectors-4/Overview.bs
+++ b/selectors-4/Overview.bs
@@ -3265,7 +3265,7 @@ Grammar</h2>
 	                    <<pseudo-class-selector>> | <<pseudo-element-selector>>
 
 
-	<dfn>&lt;combinator></dfn> = '>>' | '>' | '+' | '~' | [ '|' '|' ]
+	<dfn>&lt;combinator></dfn> = '>>' | '>' | '+' | '~' | [ '||' ]
 
 	<dfn>&lt;type-selector></dfn> = <<wq-name>> | <<ns-prefix>>? '*'