1 files changed, 3 insertions, 0 deletions
diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index 8e85de17613..5220ecdce93 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -589,6 +589,9 @@ fn print_item(s: ps, &&item: @ast::item) {
         for methods.each |meth| { print_ty_method(s, meth); }
         bclose(s, item.span);
       }
+      ast::item_mac(_m) {
+        fail "item macros unimplemented"
+      }
     }
     s.ann.post(ann_node);
 }