diff --git a/rootfs/usr/local/bin/pkmgr b/rootfs/usr/local/bin/pkmgr
index 4a3575e..3cd10ba 100755
--- a/rootfs/usr/local/bin/pkmgr
+++ b/rootfs/usr/local/bin/pkmgr
@@ -110,7 +110,7 @@ install)
   for pkg in $install_list; do
     echo "installing packages command: $pkmgr_install_cmd $pkg"
     $pkmgr_install_cmd $pkg
-    [ -n "$pkmgr_install_post" ] && eval $pkmgr_install_post
+    if [ -n "$pkmgr_install_post" ]; then eval $pkmgr_install_post; fi
   done
   exit
   ;;