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-rw-r--r--src/libserialize/json.rs4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/libserialize/json.rs b/src/libserialize/json.rs
index 4a2ca58fc92..19d23265b01 100644
--- a/src/libserialize/json.rs
+++ b/src/libserialize/json.rs
@@ -398,7 +398,7 @@ fn fmt_number_or_null(v: f64) -> string::String {
 
 /// A structure for implementing serialization to JSON.
 pub struct Encoder<'a> {
-    writer: &'a mut io::Writer+'a,
+    writer: &'a mut (io::Writer+'a),
 }
 
 impl<'a> Encoder<'a> {
@@ -602,7 +602,7 @@ impl<'a> ::Encoder<io::IoError> for Encoder<'a> {
 /// Another encoder for JSON, but prints out human-readable JSON instead of
 /// compact data
 pub struct PrettyEncoder<'a> {
-    writer: &'a mut io::Writer+'a,
+    writer: &'a mut (io::Writer+'a),
     curr_indent: uint,
     indent: uint,
 }