diff --git a/20-zipl-kernel.install b/20-zipl-kernel.install
index 7315095..91d7581 100755
--- a/20-zipl-kernel.install
+++ b/20-zipl-kernel.install
@@ -74,7 +74,7 @@ case "$COMMAND" in
             fi
         fi
 
-        if [[ ! -f /sbin/new-kernel-pkg ]]; then
+        if [[ ! -f /sbin/new-kernel-pkg || -d "$BLS_DIR" ]]; then
             declare -a BOOT_OPTIONS
             if [[ -f /etc/kernel/cmdline ]]; then
                 read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline