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-rw-r--r--src/libsyntax/parse/parser.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 0ae43db8315..8038baebdcf 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -274,7 +274,7 @@ struct ParsedItemsAndViewItems {
 
 /* ident is handled by common.rs */
 
-pub fn Parser<'a>(sess: &'a ParseSess, cfg: ast::CrateConfig, rdr: ~Reader:)
+pub fn Parser<'a>(sess: &'a ParseSess, cfg: ast::CrateConfig, mut rdr: ~Reader:)
               -> Parser<'a> {
     let tok0 = rdr.next_token();
     let span = tok0.sp;