--- libmalloc/libmalloc-166.200.60/tests/magazine_malloc.c
+++ libmalloc/libmalloc-283/tests/magazine_malloc.c
@@ -7,6 +7,8 @@
 #include <darwintest.h>
 #include <stdlib.h>
 #include <malloc/malloc.h>
+
+T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
 
 T_DECL(malloc_zone_batch, "malloc_zone_batch_malloc and malloc_zone_batch_free")
 {