--- libmalloc/libmalloc-166.251.2/tests/malloc_free_test.c
+++ libmalloc/libmalloc-283.100.5/tests/malloc_free_test.c
@@ -9,6 +9,8 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <malloc/malloc.h>
+
+T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
 
 static inline void*
 t_malloc(size_t s)