diff --git a/boostbook.jam b/boostbook.jam
index 62845adc9..35d4cbb74 100644
--- a/boostbook.jam
+++ b/boostbook.jam
@@ -8,7 +8,7 @@ import regex ;
 import scanner ;
 
 feature.feature xsl:param : : free ;
-feature.feature format : html onehtml pdf ps docbook fo 
+feature.feature format : onehtml pdf ps docbook fo 
   : incidental implicit composite ;
 
 type.register XML : xml ;