--- libmalloc/libmalloc-792.1.1/tests/stress_test.c
+++ libmalloc/libmalloc-657.60.21/tests/stress_test.c
@@ -712,7 +712,7 @@
 	setup_and_test();
 }
 
-T_DECL(malloc_stress_msl_full, "Stress the heck out of malloc() - enable malloc stack logging, full mode", T_META_ENVVAR("MallocStackLogging=full"))
+T_DECL(malloc_stress_msl_full, "Stress the heck out of malloc() - enable malloc stack logging, full mode", T_META_ENVVAR("MallocStackLogging=1"))
 {
 	setup_and_test();
 }