diff --git a/doc/index/rtree/query.qbk b/doc/index/rtree/query.qbk
index b57c9d3e1..7f10db949 100644
--- a/doc/index/rtree/query.qbk
+++ b/doc/index/rtree/query.qbk
@@ -175,7 +175,7 @@ Of course it's possible to connect different types of predicates together.
 
 [h4 Breaking or pausing the query]
 
-By use of query iterators, the query may be paused and resumed if needed, e.g. when the query takes too long,
+The query performed using query iterators may be paused and resumed if needed, e.g. when the query takes too long,
 or stopped at some point, e.g when all interesting values were gathered.
 
  for ( Rtree::const_query_iterator it = tree.qbegin(bgi::nearest(pt, 10000)) ;