diff --git a/hyphenate/hyphenate/us/exceptions.rkt b/hyphenate/hyphenate/us/exceptions.rkt
index d7b9c450..248917c0 100644
--- a/hyphenate/hyphenate/us/exceptions.rkt
+++ b/hyphenate/hyphenate/us/exceptions.rkt
@@ -15,6 +15,7 @@ law-yer-ing
 law-yer-ly
 law-yered
 law-yers
+look-ahead
 oblig-a-tory
 oki-na
 oki-nas