diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 2eefd1315d..9cbadb9688 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -16,6 +16,10 @@
    The license applies to all entries newer than 2009-04-28.
 */
 
+2011-01-16 15:49 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
+  * harbour/contrib/hblzf/hblzf.c
+    ! fixed decompress buffer resizing
+
 2011-01-16 00:40 UTC+0200 Petr Chornyj (myorg63 at mail.ru)
   * contrib/hbmxml/hbmxml.c
     + Added experimental hb_mxmlGetAttrsCount(), hb_mxmlGetAttrs(), 
diff --git a/harbour/contrib/hblzf/hblzf.c b/harbour/contrib/hblzf/hblzf.c
index fc250105d0..b126043fae 100644
--- a/harbour/contrib/hblzf/hblzf.c
+++ b/harbour/contrib/hblzf/hblzf.c
@@ -190,13 +190,12 @@ HB_FUNC( HB_LZF_DECOMPRESS )
 
          if( buffer && buffer_size )
          {
-            HB_SIZE i = 1;
             unsigned int uiResult;
 
             do
             {
-               buffer_size *= i++;
-               buffer = ( char * ) hb_xrealloc( buffer, buffer_size );
+               buffer_size <<= 1;
+               buffer = ( char * ) hb_xrealloc( buffer, buffer_size + 1 );
 
                uiResult = lzf_decompress( in_data, in_len, buffer, buffer_size );
             }