diff --git a/common/libs/func_install_blfs b/common/libs/func_install_blfs
index 991b96d..5fafc99 100644
--- a/common/libs/func_install_blfs
+++ b/common/libs/func_install_blfs
@@ -7,9 +7,9 @@ install_blfs_tools() {       # the scriptlets to build
 #----------------------------# the dependency tools
 set -e
 # Install the files
-[[ ! -d ${BUILDDIR}${BLFS_ROOT} ]] && {
-    sudo mkdir -pv ${BUILDDIR}${BLFS_ROOT}
-    sudo chown $USER:$USER ${BUILDDIR}${BLFS_ROOT}
+[[ ! -d "${BUILDDIR}${BLFS_ROOT}" ]] && {
+    sudo mkdir -pv "${BUILDDIR}${BLFS_ROOT}"
+    sudo chown "$USER" "${BUILDDIR}${BLFS_ROOT}"
 }
 cp -r BLFS/* ${BUILDDIR}${BLFS_ROOT}
 cp -r menu ${BUILDDIR}${BLFS_ROOT}
diff --git a/jhalfs b/jhalfs
index a82d6e5..75e83f1 100755
--- a/jhalfs
+++ b/jhalfs
@@ -367,7 +367,9 @@ if [[ "$REBUILD_MAKEFILE" = "n" ]] ; then
 
   if [[ ! -d $JHALFSDIR ]]; then
     sudo mkdir -p "$JHALFSDIR"
-    sudo chown "$USER":"$USER" "$JHALFSDIR"
+# Do not assume there is a group named as $USER, do not use
+# $USER:$USER...
+    sudo chown "$USER" "$JHALFSDIR"
   fi
 
 # Create $BUILDDIR/sources even though it could be created by get_sources()