diff --git a/typed-racket-more/typed/rackunit/main.rkt b/typed-racket-more/typed/rackunit/main.rkt
index ad5e4752..0d4fdb94 100644
--- a/typed-racket-more/typed/rackunit/main.rkt
+++ b/typed-racket-more/typed/rackunit/main.rkt
@@ -138,10 +138,7 @@
 (require/opaque-type TestCase test-case? rackunit)
 (provide TestCase test-case?)
 
-(require/typed
- rackunit/private/monad
- [#:opaque monad monad?])
-(define-type Seed (U #f monad (Object)))
+(define-type Seed (U #f (Object)))
 
 (define-type test-suite-handler-down
   (rackunit-test-suite (Option String) (Thunk Any) (Thunk Any) Seed -> Seed))