1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index dd179171fce..5013b2c919f 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -3112,7 +3112,7 @@ pub impl Parser {
     fn parse_trait_ref_list(&self, ket: &token::Token) -> ~[@trait_ref] {
         self.parse_seq_to_before_end(
             ket,
-            seq_sep_none(),
+            seq_sep_trailing_disallowed(token::BINOP(token::PLUS)),
             |p| p.parse_trait_ref()
         )
     }