diff --git a/src/build_theme.sh b/src/build_theme.sh
index f565446..8c43e2a 100755
--- a/src/build_theme.sh
+++ b/src/build_theme.sh
@@ -1,111 +1,112 @@
 #!/bin/sh
 set -e
 
 # Usage: create_folders <target-directory>
 create_folders () {
   for j in gtk-2.0 gtk-3.0; do
     if ! [ -d "$1/$j" ]; then
         mkdir -p "$1/$j"
     fi
   done 
 }
 
 # Usage: build_sass <source-directory> <target-directory> <include-directory>
 build_sass() {
   if command -v sassc >/dev/null 2>&1; then
       sassc -I "$3" "$1" "$2"
   else
       sass -I "$3" --cache-location /tmp/sass-cache "$1" "$2"
   fi
 }
 
 # Usage: install_theme <theme-directory> <theme-name> <install-target-dir>
 # If <install-target-dir> is unset or empty, install to $HOME/.local/share/themes/$THEME_NAME
 install_theme () {
   THEME_INSTALL_TARGET="$3"
   if [ -z "${THEME_INSTALL_TARGET}" ]; then
     THEME_INSTALL_TARGET="${HOME}/.local/share/themes/$2"
   fi
   echo "Installing into ${THEME_INSTALL_TARGET}"
   mkdir -p "${THEME_INSTALL_TARGET}"
   for dir in assets gtk-2.0 gtk-3.0; do
     if [ -d "${THEME_INSTALL_TARGET}/$dir" ]; then
       rm -rf "${THEME_INSTALL_TARGET:?}/$dir"
     fi
     mv -f "$1/$dir" "${THEME_INSTALL_TARGET}"
   done
   rmdir "$1"
 }
 
 # Usage render_theme <colorscheme> <theme-name> <theme-install-target> <colorschemebase>
 render_theme () {
   THEME_BUILD_DIR="$(mktemp -d)"
   create_folders "${THEME_BUILD_DIR}"
   cp -R gtk2/* "${THEME_BUILD_DIR}/gtk-2.0/"
   python3 render_assets.py -c "$1" -a "${THEME_BUILD_DIR}/assets" \
     -g "${THEME_BUILD_DIR}/gtk-2.0" -G "${THEME_BUILD_DIR}" -b "$4"
   build_sass gtk3/gtk.scss "${THEME_BUILD_DIR}/gtk-3.0/gtk.css" "${THEME_BUILD_DIR}"
   rm -f "${THEME_BUILD_DIR}/_global.scss"
   install_theme "${THEME_BUILD_DIR}" "$2" "$3"
 }
 
 COLOR_SCHEME=""
 INSTALL_TARGET=""
 THEME_NAME=""
 COLOR_SCHEME_ROOT="/usr/share/color-schemes"
 
 while [ "$#" -gt 0 ]; do
   case "$1" in
     -h|--help)
       echo "$0: build Breeze theme"
       echo "Usage: $0 [-c COLOR_SCHEME] [-r COLOR_SCHEME_ROOT] [-t TARGET_DIRECTORY]"
       echo
       echo "Arguments:"
       echo "  -h, --help           show this help"
       echo "  -c COLOR_SCHEME      use color scheme with name COLOR_SCHEME. If unset or"
       echo "                       empty, the value from ~/.config/kdeglobals is used"
       echo "  -r COLOR_SCHEME_ROOT The base path of all color schemes or"
       echo "                       /usr/share/color-schemes if unset"
       echo "  -t TARGET_DIRECTORY  the directory to install the color scheme. If unset or"
       echo "                       empty, it is installed into"
       echo "                       ~/.local/share/themes/THEME_NAME"
       exit 0
     ;;
     -c)
       shift
       COLOR_SCHEME="$1"
     ;;
     -t)
       shift
       INSTALL_TARGET="$1"
     ;;
     -r)
       shift
       COLOR_SCHEME_ROOT="$1"
     ;;
   esac
   shift
 done
 
 if [ -z "${COLOR_SCHEME}" ]; then
   THEME_NAME="Breeze"
   if [ -f "${HOME}/.config/kdeglobals" ]; then
     COLOR_SCHEME="${HOME}/.config/kdeglobals"
   else
     echo "${HOME}/.config/kdeglobals not found, using defaults"
     COLOR_SCHEME="${COLOR_SCHEME_ROOT}/Breeze.colors"
   fi
 else
   THEME_NAME="${COLOR_SCHEME}"
   if [ -f "${COLOR_SCHEME_ROOT}/${COLOR_SCHEME}.colors" ]; then
     COLOR_SCHEME="${COLOR_SCHEME_ROOT}/${COLOR_SCHEME}.colors"
   elif [ -f "${HOME}/.local/share/color-schemes/${COLOR_SCHEME}.colors" ]; then
     COLOR_SCHEME="${HOME}/.local/share/color-schemes/${COLOR_SCHEME}.colors"
   else
     echo "colorscheme ${COLOR_SCHEME} not found"
     exit 1
   fi
 fi
 
 render_theme "${COLOR_SCHEME}" "${THEME_NAME}" "${INSTALL_TARGET}" "${COLOR_SCHEME_ROOT}/Breeze.colors"
-cp -r assets/ "${INSTALL_TARGET}"
\ No newline at end of file
+[[ -z "${INSTALL_TARGET}" ]] && INSTALL_TARGET="${HOME}/.local/share/themes/${THEME_NAME}"
+cp -r assets/ "${INSTALL_TARGET}"