diff --git a/src/arachne.c b/src/arachne.c
index 0b0f9ae..7b98005 100644
--- a/src/arachne.c
+++ b/src/arachne.c
@@ -11,7 +11,7 @@
 #include <limits.h>
 #include <float.h>
 #include <string.h>
-#ifndef OSXHOST
+#if !defined(__APPLE__)
 #ifdef DEBUG
 #include <malloc.h>
 #endif