diff --git a/openmamba-update/openmamba-netsrpms b/openmamba-update/openmamba-netsrpms
index 0c992a7..2af99f6 100755
--- a/openmamba-update/openmamba-netsrpms
+++ b/openmamba-update/openmamba-netsrpms
@@ -2,7 +2,7 @@
 #
 # netsrpm-install.sh - Build srpms that download sources from network
 #
-# Copyright (C) 2003-2012 by Silvan Calarco <silvan.calarco@mambasoft.it>
+# Copyright (C) 2003-2013 by Silvan Calarco <silvan.calarco@mambasoft.it>
 # Copyright (C) 2005 by Massimo Pintore <massimo.pintore@qilinux.it>
 # Copyright (C) 2005-2007 by Davide Madrisan <davide.madrisan@qilinux.it>
 
@@ -13,7 +13,10 @@ rpmdir=$(rpm --eval=%{_rpmdir} 2>/dev/null)
 while [ "$1" ]; do
    case $1 in
       -c) CHECK_MODE=1 ;;
+      -f) FORCE_MODE=1 ;;
       -u) UPGRADE_MODE=1 ;;
+      -h|--help) PACKAGES= ; break ;;
+      -*) echo "Error: invalid option $1; aborting."; exit 1 ;;
       *) PACKAGES="$PACKAGES $1"
    esac
    shift
@@ -21,9 +24,11 @@ done
 
 if [ -z "$PACKAGES" ]; then
    echo "Usage:
-$me [-c] pkgname ...
+$me [options...] pkgname ...
 
+Options:
 -c: only check and exit (returns: 0: up-to-date; 1: needs update; 2: not installed)
+-f: force reinstallation if already installed
 -u: only upgrade if already installed
 "
    exit 255
@@ -125,6 +130,9 @@ for pckname in $PACKAGES; do
       RPM_PATH=`find $tmpdir -name \*.rpm`
 
       # install rpm
+      if [ "$FORCE_MODE" = "1" ]; then
+         sudo smart remove -y $pckname
+      fi
       sudo smart install -y $RPM_PATH
       if [ $? -gt 0 ]; then
          echo "$me: "$"error installing \`$RPM_PATH'."" "$"Aborting..." >&2