diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 86010a9639..6a4db13414 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -17,6 +17,11 @@
    past entries belonging to author(s): Viktor Szakats.
 */
 
+2010-03-18 16:12 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
+  * harbour/src/rtl/hbzlib.c
+  * harbour/contrib/hbbzip2/hbbzip2.c
+    ! fixed typo (reverted return value) in recent modification
+
 2010-03-18 14:10 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
   * harbour/contrib/hbwin/axcore.c
     * use hb_parstr_u16() instead of hb_mbtowc(hb_parc(n))
diff --git a/harbour/contrib/hbbzip2/hbbzip2.c b/harbour/contrib/hbbzip2/hbbzip2.c
index ff77c471b2..5e868e2a0c 100644
--- a/harbour/contrib/hbbzip2/hbbzip2.c
+++ b/harbour/contrib/hbbzip2/hbbzip2.c
@@ -222,9 +222,9 @@ HB_FUNC( HB_BZ2_UNCOMPRESSLEN )
          nLen = hb_bz2UncompressedSize( szData, nLen, &iResult );
 
       if( iResult == BZ_OK )
-         hb_retni( -1 );
-      else
          hb_retnint( nLen );
+      else
+         hb_retni( -1 );
 
       hb_storni( iResult, 2 );
    }
diff --git a/harbour/src/rtl/hbzlib.c b/harbour/src/rtl/hbzlib.c
index a1be3723a6..59de435076 100644
--- a/harbour/src/rtl/hbzlib.c
+++ b/harbour/src/rtl/hbzlib.c
@@ -136,9 +136,9 @@ HB_FUNC( HB_ZUNCOMPRESSLEN )
          ulLen = hb_zlibUncompressedSize( szData, ulLen, &iResult );
 
       if( iResult == Z_OK )
-         hb_retni( -1 );
-      else
          hb_retnint( ulLen );
+      else
+         hb_retni( -1 );
 
       hb_storni( iResult, 2 );
    }