diff --git a/harbour/ChangeLog.txt b/harbour/ChangeLog.txt
index cca05e77c4..7d51363c0f 100644
--- a/harbour/ChangeLog.txt
+++ b/harbour/ChangeLog.txt
@@ -10,6 +10,11 @@
      * Change, ! Fix, % Optimization, + Addition, - Removal, ; Comment
  */
 
+2013-03-05 11:22 UTC+0100 Tamas TEVESZ (ice extreme.hu)
+  * src/common/hbver.c
+    ! Open64 5.0 does not define __OPENCC_PATCHLEVEL__ to
+      a numeric value; treat it as 0.
+
 2013-03-04 16:53 UTC+0100 Viktor Szakats (harbour syenar.net)
   * utils/hbmk2/hbmk2.prg
     % eliminated unnecessary groups from regexps
diff --git a/harbour/src/common/hbver.c b/harbour/src/common/hbver.c
index 96b113e506..f0a2755ba0 100644
--- a/harbour/src/common/hbver.c
+++ b/harbour/src/common/hbver.c
@@ -787,6 +787,10 @@ char * hb_verCompiler( void )
 
    iVerMajor = __OPENCC__;
    iVerMinor = __OPENCC_MINOR__;
+#if __OPENCC_PATCHLEVEL__ - 0 <= 0
+   #undef __OPENCC_PATCHLEVEL__
+   #define __OPENCC_PATCHLEVEL__ 0
+#endif
    iVerPatch = __OPENCC_PATCHLEVEL__;
 
 #elif defined( _MSC_VER )