diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index 79523acb99ba..cc1cf98bff17 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -339,7 +339,7 @@ enum expr_ {
              /* id for the alloc() call */ node_id,
              /* value */ @expr),
 
-    /* just an assert, no significance to typestate */
+    /* just an assert */
     expr_assert(@expr),
 
     expr_mac(mac),