diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 1988578cc5..bca17949d1 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -16,6 +16,10 @@
    The license applies to all entries newer than 2009-04-28.
 */
 
+2011-01-11 19:17 UTC+0100 Viktor Szakats (harbour.01 syenar.hu)
+  * contrib/hbxdiff/hbxdiff.c
+    ! Typo in prev.
+
 2011-01-11 19:12 UTC+0100 Viktor Szakats (harbour.01 syenar.hu)
   * contrib/hbxdiff/hbxdiff.c
     + Added support for codeblocks as callbacks.
diff --git a/harbour/contrib/hbxdiff/hbxdiff.c b/harbour/contrib/hbxdiff/hbxdiff.c
index e3ceabcf08..0893bfdc02 100644
--- a/harbour/contrib/hbxdiff/hbxdiff.c
+++ b/harbour/contrib/hbxdiff/hbxdiff.c
@@ -544,7 +544,7 @@ HB_FUNC( XDL_BDIFF )
       }
       else if( HB_ISBLOCK( 4 ) )
       {
-         PHB_ITEM pBlock = hb_param( 3, HB_IT_BLOCK );
+         PHB_ITEM pBlock = hb_param( 4, HB_IT_BLOCK );
 
          ecb.priv = ( void * ) pBlock;
          ecb.outf = xdlt_outh;