diff --git a/usr/lib/security-misc/permission-hardening b/usr/lib/security-misc/permission-hardening
index b242317..7bab862 100755
--- a/usr/lib/security-misc/permission-hardening
+++ b/usr/lib/security-misc/permission-hardening
@@ -37,6 +37,7 @@ add_statoverride_entry() {
 set_file_perms() {
   while read -r line; do
     if [[ "$line" =~ ^#.*$ ]]; then
+      echo "ERROR: cannot parse line with invalid character: ${line}"
       continue
     fi