diff --git a/debian/security-misc.config b/debian/security-misc.config
index 07dfcf6..11dd83d 100755
--- a/debian/security-misc.config
+++ b/debian/security-misc.config
@@ -21,7 +21,10 @@ true "
 #####################################################################
 "
 
-## Copied from helper-scripts/usr/libexec/helper-scripts/package_installed_check.bsh
+## Code duplication.
+## '.config' scripts are run very early. Even 'Pre-Depends: helper-scripts' would be insufficient.
+## Therefore the code is duplicated here.
+## Copied from: helper-scripts /usr/libexec/helper-scripts/package_installed_check.bsh
 pkg_installed() {
    local package_name dpkg_query_output
    local requested_action status error_state