diff --git a/.githooks/post-checkout b/.githooks/post-checkout
index 1e6e26e..9513a8f 100755
--- a/.githooks/post-checkout
+++ b/.githooks/post-checkout
@@ -29,8 +29,8 @@ if [ -f $CHECKOUT_HISTORY_FILE ]; then
         if grep -q . "${OPKG_COMMANDS_FILE}"; then
             readarray opkg_commands < <(cat $OPKG_COMMANDS_FILE)
             for opkg_c in "${opkg_commands[@]}"; do
-                # check for empty lines
-                if [ "$opkg_c" ]; then
+                # check for   empty lines
+                if ! grep -qE '^[[:space:]]*$' <<< "$opkg_c"; then
                     echo "CCC=${opkg_c}CCC"
                     # check if line is not starting with '#'
                     if ! grep -qE "^\s*[#]+.*$" <<< "$opkg_c"; then