--- libmalloc/libmalloc-283/tests/madvise.c
+++ libmalloc/libmalloc-140.1.1/tests/madvise.c
@@ -8,10 +8,9 @@
 
 #include "base.h"
 #include "platform.h"
-#include "nano_zone_common.h"
 #include "nano_zone.h"
 
-extern int
+extern boolean_t
 malloc_engaged_nano(void);
 
 #define T_EXPECT_BYTES(p, len, byte, msg, ...) do { \