diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 462154ce26..920606c957 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -17,6 +17,11 @@
    past entries belonging to author(s): Viktor Szakats.
 */
 
+2010-04-22 19:40 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
+  * external/minizip/ioapi.h
+    ! Added darwin-specific workaround to disable 64-bit
+      file API calls (like fopen64()). These don't exist on darwin.
+
 2010-04-22 18:41 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
   * config/postinst.prg
     ! Added hack to workaround the exception where mysql .dll doesn't
diff --git a/harbour/external/minizip/ioapi.h b/harbour/external/minizip/ioapi.h
index a43fd09339..4363a2d281 100644
--- a/harbour/external/minizip/ioapi.h
+++ b/harbour/external/minizip/ioapi.h
@@ -41,9 +41,12 @@
 #include <stdlib.h>
 #include "zlib.h"
 
+#include "hbsetup.h"
+
 #if defined( __BORLANDC__ ) || \
     defined( __WATCOMC__ ) || \
-    defined( __MINGW32CE__ )
+    defined( __MINGW32CE__ ) || \
+    defined( HB_OS_DARWIN )
 #  define USE_FILE32API
 #endif