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-rw-r--r--src/libsyntax/ast.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index 470e05223db..51c47acff0e 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -498,7 +498,7 @@ pub enum expr_ {
     expr_mac(mac),
 
     // A struct literal expression.
-    expr_struct(Path, ~[Field], Option<@expr>),
+    expr_struct(Path, ~[Field], Option<@expr> /* base */),
 
     // A vector literal constructed from one repeated element.
     expr_repeat(@expr /* element */, @expr /* count */, mutability),