diff --git a/basis/match/match-tests.factor b/basis/match/match-tests.factor
index 69e82305d1..f24e5f7bf4 100644
--- a/basis/match/match-tests.factor
+++ b/basis/match/match-tests.factor
@@ -59,7 +59,7 @@ C: <foo> foo
     ] with-variables
 ] unit-test
 
-{ H{ { ?a ?a } } }
+{ H{ { ?a ?a } } } [
     \ ?a \ ?a match
 ] unit-test