diff --git a/JsonGrammar.cabal b/JsonGrammar.cabal
--- a/JsonGrammar.cabal
+++ b/JsonGrammar.cabal
@@ -1,5 +1,5 @@
 Name:           JsonGrammar
-Version:        1.0.2
+Version:        1.0.3
 Synopsis:       Combinators for bidirectional JSON parsing
 Description:   	Combinators for bidirectional JSON parsing
 
@@ -7,7 +7,7 @@
 Author:         Martijn van Steenbergen
 Maintainer:     martijn@van.steenbergen.nl
 Stability:      Experimental
-Copyright:      Some Rights Reserved (CC) 2010-2014 Martijn van Steenbergen
+Copyright:      Some Rights Reserved (CC) 2010-2015 Martijn van Steenbergen
 Homepage:       https://github.com/MedeaMelana/JsonGrammar2
 Bug-reports:    https://github.com/MedeaMelana/JsonGrammar2/issues
 
@@ -32,7 +32,7 @@
                     Language.JsonGrammar.Serializer,
                     Language.JsonGrammar.Util
   Build-Depends:    base >= 3.0 && < 5,
-                    aeson >= 0.9 && < 0.10,
+                    aeson >= 0.9 && < 0.11,
                     semigroups >= 0.5 && < 0.17,
                     language-typescript >= 0.0.4 && < 0.1,
                     mtl >= 2.1 && < 2.3,
@@ -56,9 +56,9 @@
   Build-Depends:    JsonGrammar,
                     stack-prism >= 0.1 && < 0.2,
                     base >= 3.0 && < 5,
-                    aeson >= 0.6 && < 0.10,
+                    aeson >= 0.6 && < 0.11,
                     language-typescript >= 0.0.4 && < 0.1,
                     text >= 0.11.0.2,
                     test-framework >= 0.8 && < 0.9,
                     test-framework-hunit >= 0.3 && < 0.4,
-                    HUnit >= 1.2 && < 1.3
+                    HUnit >= 1.2 && < 1.4
diff --git a/src/Language/JsonGrammar/Parser.hs b/src/Language/JsonGrammar/Parser.hs
--- a/src/Language/JsonGrammar/Parser.hs
+++ b/src/Language/JsonGrammar/Parser.hs
@@ -47,7 +47,7 @@
 
 parseProperties :: Object -> Grammar 'Obj t1 t2 -> t1 -> Parser t2
 parseProperties obj = \case
-  Id            -> return
+  Id           -> return
   g1 :. g2     -> parseProperties obj g2 >=> parseProperties obj g1
 
   Empty        -> \_ -> fail "empty grammar"