diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index 96f86e03d1..e967a42fe9 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -17,6 +17,12 @@
    past entries belonging to author(s): Viktor Szakats.
 */
 
+2009-07-02 01:19 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
+  * harbour/include/hbapi.h
+  * harbour/source/vm/extend.c
+    * changed type of returned value in hb_par[v]ds() functions
+      from 'char *' to 'const char *'
+
 2009-07-02 00:35 UTC+0200 Viktor Szakats (harbour.01 syenar.hu)
   * contrib/Makefile
     * Moved hbxbp to the end of list as a workaround for potentially
diff --git a/harbour/include/hbapi.h b/harbour/include/hbapi.h
index 91bcb211eb..3506db0a3d 100644
--- a/harbour/include/hbapi.h
+++ b/harbour/include/hbapi.h
@@ -613,7 +613,7 @@ extern HB_EXPORT const char * hb_parc( int iParam ); /* retrieve a string parame
 extern HB_EXPORT const char * hb_parcx( int iParam ); /* retrieve a string parameter */
 extern HB_EXPORT ULONG        hb_parclen( int iParam ); /* retrieve a string parameter length */
 extern HB_EXPORT ULONG        hb_parcsiz( int iParam ); /* retrieve a by-reference string parameter length, including terminator */
-extern HB_EXPORT char *       hb_pards( int iParam ); /* retrieve a date as a string YYYYMMDD */
+extern HB_EXPORT const char * hb_pards( int iParam ); /* retrieve a date as a string YYYYMMDD */
 extern HB_EXPORT char *       hb_pardsbuff( char * szDate, int iParam ); /* retrieve a date as a string YYYYMMDD */
 extern HB_EXPORT LONG         hb_pardl( int iParam ); /* retrieve a date as a LONG NUMBER  */
 extern HB_EXPORT double       hb_partd( int iParam ); /* retrieve a timestamp as a double number */
@@ -633,7 +633,7 @@ extern HB_EXPORT const char * hb_parvc( int iParam, ... ); /* retrieve a string
 extern HB_EXPORT const char * hb_parvcx( int iParam, ... ); /* retrieve a string parameter */
 extern HB_EXPORT ULONG        hb_parvclen( int iParam, ... ); /* retrieve a string parameter length */
 extern HB_EXPORT ULONG        hb_parvcsiz( int iParam, ... ); /* retrieve a by-reference string parameter length, including terminator */
-extern HB_EXPORT char *       hb_parvds( int iParam, ... ); /* retrieve a date as a string YYYYMMDD */
+extern HB_EXPORT const char * hb_parvds( int iParam, ... ); /* retrieve a date as a string YYYYMMDD */
 extern HB_EXPORT char *       hb_parvdsbuff( char * szDate, int iParam, ... ); /* retrieve a date as a string YYYYMMDD */
 extern HB_EXPORT LONG         hb_parvdl( int iParam, ... ); /* retrieve a date as a LONG NUMBER  */
 extern HB_EXPORT double       hb_parvtd( int iParam, ... ); /* retrieve a timestamp as a double number */
diff --git a/harbour/source/vm/extend.c b/harbour/source/vm/extend.c
index 4ba2d94dcd..a4ee1628a8 100644
--- a/harbour/source/vm/extend.c
+++ b/harbour/source/vm/extend.c
@@ -298,7 +298,7 @@ ULONG  hb_parcsiz( int iParam )
 /* NOTE: Using hb_stackDateBuffer() a temporary date buffer guaranties
          good behavior when multithreading. */
 
-char  * hb_pards( int iParam )
+const char * hb_pards( int iParam )
 {
    HB_STACK_TLS_PRELOAD
 
@@ -747,7 +747,7 @@ ULONG  hb_parvcsiz( int iParam, ... )
 /* NOTE: Using hb_stackDateBuffer() a temporary date buffer guaranties
          good behavior when multithreading. */
 
-char  * hb_parvds( int iParam, ... )
+const char * hb_parvds( int iParam, ... )
 {
    HB_STACK_TLS_PRELOAD