diff --git a/rp-tree.cabal b/rp-tree.cabal
--- a/rp-tree.cabal
+++ b/rp-tree.cabal
@@ -1,5 +1,5 @@
 name:                rp-tree
-version:             0.7
+version:             0.7.1
 synopsis:            Random projection trees
 description:         Random projection trees for approximate nearest neighbor search in high-dimensional vector spaces
                      .
diff --git a/src/Data/RPTree.hs b/src/Data/RPTree.hs
--- a/src/Data/RPTree.hs
+++ b/src/Data/RPTree.hs
@@ -58,9 +58,10 @@
   -- ** Parameters
   , rpTreeCfg, RPTreeConfig(..)
   -- , ForestParams
-  -- * Query
+  -- * k-nearest neighbors queries
   , knn
   , knnH
+  , knnPQ
   -- * I/O
   , serialiseRPForest
   , deserialiseRPForest