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-rw-r--r--src/rustc/middle/check_const.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/rustc/middle/check_const.rs b/src/rustc/middle/check_const.rs
index 9abeda8dded..a84be38488c 100644
--- a/src/rustc/middle/check_const.rs
+++ b/src/rustc/middle/check_const.rs
@@ -27,7 +27,7 @@ fn check_item(sess: session, ast_map: ast_map::map, def_map: resolve::def_map,
       }
       item_enum(vs, _, _) {
         for vs.each {|var|
-            option::iter(var.node.disr_expr) {|ex|
+            do option::iter(var.node.disr_expr) {|ex|
                 v.visit_expr(ex, true, v);
             }
         }