diff --git a/src/library/scala/util/parsing/json/Lexer.scala b/src/library/scala/util/parsing/json/Lexer.scala
index c44e29079..143871c8d 100644
--- a/src/library/scala/util/parsing/json/Lexer.scala
+++ b/src/library/scala/util/parsing/json/Lexer.scala
@@ -62,7 +62,7 @@ class Lexer extends StdLexical with ImplicitConversions {
     case None => ""
   }
 
-  def zero: Parser[String] = '0' ^^ toString
+  def zero: Parser[String] = '0' ^^ "0"
   def nonzero = elem("nonzero digit", d => d.isDigit && d != '0')
   def exponent = elem("exponent character", d => d == 'e' || d == 'E')
   def sign = elem("sign character", d => d == '-' || d == '+')
diff --git a/test/files/run/json.check b/test/files/run/json.check
index a6495477a..a73562422 100644
--- a/test/files/run/json.check
+++ b/test/files/run/json.check
@@ -2,6 +2,7 @@ Some(List((name,value)))
 Some(List((name,va1ue)))
 Some(List((name,List((name1,va1ue1), (name2,va1ue2)))))
 Some(List((name,")))
+Some(List((age,0.0)))
 
 Some(List((firstName,John), (lastName,Smith), (address,List((streetAddress,21 2nd Street), (city,New York), (state,NY), (postalCode,10021.0))), (phoneNumbers,List(212 732-1234, 646 123-4567))))
 
diff --git a/test/files/run/json.scala b/test/files/run/json.scala
index 3b27665b5..2e7ee4aa4 100644
--- a/test/files/run/json.scala
+++ b/test/files/run/json.scala
@@ -8,6 +8,7 @@ object Test extends Application {
   printJSON("{\"name\": \"va1ue\"}")  // ticket #136
   printJSON("{\"name\": { \"name1\": \"va1ue1\", \"name2\": \"va1ue2\" } }")
   printJSON("{\"name\": \"\\u0022\"}")
+  printJSON("{\"age\": 0}") 
   println
 
   // from http://en.wikipedia.org/wiki/JSON