diff --git a/libco/aarch64.c b/libco/aarch64.c
index 06b78d0..2eb9ac6 100644
--- a/libco/aarch64.c
+++ b/libco/aarch64.c
@@ -11,7 +11,7 @@
 #include <string.h>
 #include <stdint.h>
 
-#ifndef IOS
+#ifndef __APPLE__
 #include <malloc.h>
 #endif