diff --git a/Jamfile b/Jamfile
index f15f35680..b75598b44 100755
--- a/Jamfile
+++ b/Jamfile
@@ -160,7 +160,7 @@ rule building ( properties * )
 
 feature need-librt : no yes : composite propagated link-incompatible ;
 
-feature pool-allocators : off static shared : composite propagated link-incompatible ;
+feature pool-allocators : on off : composite propagated link-incompatible ;
 feature.compose <pool-allocators>off : <define>TORRENT_DISABLE_POOL_ALLOCATOR ;
 
 feature geoip : off static shared : composite propagated link-incompatible ;