diff --git a/typed-racket-more/typed/rackunit/main.rkt b/typed-racket-more/typed/rackunit/main.rkt
index 671d37d3..1a5ce426 100644
--- a/typed-racket-more/typed/rackunit/main.rkt
+++ b/typed-racket-more/typed/rackunit/main.rkt
@@ -134,7 +134,7 @@
 (require/opaque-type TestCase test-case? rackunit)
 (provide TestCase test-case?)
 
-(define-type Seed (U #f (Object)))
+(define-type Seed Any)
 
 (define-type test-suite-handler-down
   (rackunit-test-suite (Option String) (Thunk Any) (Thunk Any) Seed -> Seed))
diff --git a/typed-racket-test/succeed/rackunit-suite.rkt b/typed-racket-test/succeed/rackunit-suite.rkt
new file mode 100644
index 00000000..dbe9ce29
--- /dev/null
+++ b/typed-racket-test/succeed/rackunit-suite.rkt
@@ -0,0 +1,10 @@
+#lang typed/racket
+
+(require typed/rackunit
+         typed/rackunit/text-ui)
+
+(define passing-suite
+  (test-suite "Example Typed Rackunit test suite"
+    (check-equal? 1 1)))
+
+(check-equal? (run-tests passing-suite 'quiet) 0)