diff --git a/basis/tools/memory/memory-tests.factor b/basis/tools/memory/memory-tests.factor
index 4711f472a3..1ea5854939 100644
--- a/basis/tools/memory/memory-tests.factor
+++ b/basis/tools/memory/memory-tests.factor
@@ -1,9 +1,9 @@
-USING: tools.test tools.memory memory ;
+USING: tools.test tools.memory memory arrays ;
 IN: tools.memory.tests
 
 [ ] [ room. ] unit-test
 [ ] [ heap-stats. ] unit-test
-[ ] [ [ gc gc ] collect-gc-events ] unit-test
+[ t ] [ [ gc gc ] collect-gc-events array? ] unit-test
 [ ] [ gc-events. ] unit-test
 [ ] [ gc-stats. ] unit-test
 [ ] [ gc-summary. ] unit-test