diff --git a/Data/JSON2/Query.hs b/Data/JSON2/Query.hs
--- a/Data/JSON2/Query.hs
+++ b/Data/JSON2/Query.hs
@@ -201,9 +201,6 @@
 when f g t
   | null (g t) = [t]
   | otherwise  = f t
-when' f g t = case g t of
-                [] -> [t]
-                _  -> f t
  
 -- | @(f `guards` g )@ - If @f@ returned null then @null@ else apply @g@.
 guards	:: JFilter -> JFilter -> JFilter
diff --git a/json2.cabal b/json2.cabal
--- a/json2.cabal
+++ b/json2.cabal
@@ -1,5 +1,5 @@
 Name:                json2
-Version:             0.2
+Version:             0.2.1
 Synopsis:            This library provides support for JSON. 
 Category:            Data, Text, JSON.
 Description:         This library provides support for JSON.