diff --git a/ChangeLog.txt b/ChangeLog.txt
index 4e422002b8..ef8643e6f6 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -10,6 +10,10 @@
      * Change, ! Fix, % Optimization, + Addition, - Removal, ; Comment
  */
 
+2014-05-29 02:04 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
+  * contrib/hbmzip/mzip.c
+    ! typo in previous commit
+
 2014-05-29 00:34 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
   * contrib/hbmzip/mzip.c
     ! disable _LARGEFILE64_SOURCE after including system header files in
diff --git a/contrib/hbmzip/mzip.c b/contrib/hbmzip/mzip.c
index cae9017f4d..4537130cbf 100644
--- a/contrib/hbmzip/mzip.c
+++ b/contrib/hbmzip/mzip.c
@@ -59,7 +59,7 @@
 #include "hbdate.h"
 #include "hbset.h"
 
-#if defined( HB_OS_UNIX )
+#if ! defined( HB_OS_UNIX )
 #  undef _LARGEFILE64_SOURCE
 #endif