diff --git a/collects/typed-scheme/optimizer/optimizer.rkt b/collects/typed-scheme/optimizer/optimizer.rkt
index 685e1a9e..ac792fe0 100644
--- a/collects/typed-scheme/optimizer/optimizer.rkt
+++ b/collects/typed-scheme/optimizer/optimizer.rkt
@@ -86,6 +86,7 @@
                      [optimize (syntax-parser
                                 [e:expr
                                  #:when (and (not (syntax-property #'e 'typechecker:ignore))
+                                             (not (syntax-property #'e 'typechecker:ignore-some))
                                              (not (syntax-property #'e 'typechecker:with-handlers)))
                                  #:with e*:opt-expr #'e
                                  #'e*.opt]