diff --git a/library/test/kernel.factor b/library/test/kernel.factor
index 121f71fc0f..4a9b57e784 100644
--- a/library/test/kernel.factor
+++ b/library/test/kernel.factor
@@ -8,8 +8,8 @@ test errors math-internals ;
 ! some primitives are missing GC checks
 [ ] [ 1000000 [ drop H{ } clone >n n> drop ] each ] unit-test
 ! [ ] [ 1.0 10000000 [ drop 1.0 * ] each ] unit-test
-! [ ] [ 268435455 >fixnum 10000000 [ drop dup dup + drop ] each ] unit-test
-! [ ] [ 268435455 >fixnum 10000000 [ drop dup dup fixnum+ drop ] each ] unit-test
+! [ ] [ 268435455 >fixnum 10000000 [ dup dup + drop ] each drop ] unit-test
+[ ] [ 268435455 >fixnum 10000000 [ dup dup fixnum+ drop ] each drop ] unit-test
 [ ] [ 10000000 [ drop 1/3 >fixnum drop ] each ] unit-test
 [ ] [ 10000000 [ drop 1/3 >bignum drop ] each ] unit-test
 [ ] [ 10000000 [ drop 1/3 >float drop ] each ] unit-test