diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index e658574155..04b41eff72 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -17,6 +17,10 @@
    past entries belonging to author(s): Viktor Szakats.
 */
 
+2009-07-18 02:59 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
+  * harbour/include/hbextern.ch
+    + added HB_ZERROR
+
 2009-07-18 02:57 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
   * harbour/source/rtl/hbzlib.c
     + added HB_ZERROR( <nError> ) => <cErrorDescription>
diff --git a/harbour/include/hbextern.ch b/harbour/include/hbextern.ch
index 08df1ffc59..679fa34aee 100644
--- a/harbour/include/hbextern.ch
+++ b/harbour/include/hbextern.ch
@@ -1266,6 +1266,7 @@ EXTERNAL HB_ZCOMPRESS
 EXTERNAL HB_ZCOMPRESSBOUND
 EXTERNAL HB_ZUNCOMPRESS
 EXTERNAL HB_ZUNCOMPRESSLEN
+EXTERNAL HB_ZERROR
 EXTERNAL HB_GZOPEN
 EXTERNAL HB_GZDOPEN
 EXTERNAL HB_GZCLOSE