diff --git a/ChangeLog.txt b/ChangeLog.txt
index 812cd56600..ce7e0d0ca7 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -10,6 +10,12 @@
      * Change, ! Fix, % Optimization, + Addition, - Removal, ; Comment
  */
 
+2015-09-17 16:07 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
+  * src/rtl/hbproces.c
+    * In OS2 builds use fGentle parameter of hb_fsProcessClose() to
+      control if kill signal should be send only to child process or
+      also to its all descendant processes.
+
 2015-09-17 15:58 UTC+0200 Przemyslaw Czerpak (druzus/at/poczta.onet.pl)
   * src/rtl/filesys.c
     * pacified warnings in GCC OS2 builds
diff --git a/src/rtl/hbproces.c b/src/rtl/hbproces.c
index c09860e802..f7f7d6d131 100644
--- a/src/rtl/hbproces.c
+++ b/src/rtl/hbproces.c
@@ -1008,11 +1008,9 @@ HB_BOOL hb_fsProcessClose( HB_FHANDLE hProcess, HB_BOOL fGentle )
 {
    PID pid = ( PID ) hProcess;
 
-   HB_SYMBOL_UNUSED( fGentle );
-
    if( pid > 0 )
    {
-      APIRET ret = DosKillProcess( DKP_PROCESS, pid );
+      APIRET ret = DosKillProcess( fGentle ? DKP_PROCESS : DKP_PROCESSTREE, pid );
 
       fResult = ret == NO_ERROR;
       hb_fsSetError( ( HB_ERRCODE ) ret );